ZETSUBOU SHITA!

Quoted By: >>11477772 >>11477794

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Quoted By: >>11477943

Wait a second, OP added a 90° angle (though normally one would make a dot into the square).

Sorry, unsolvable.

Sorry, unsolvable.

Quoted By: >>11477851 >>11477943 >>11478036

Drawing is impossible.

The tick marks indicate that all sides are equal. But in a triangle with equal sides, there cannot be a right angle.

The tick marks indicate that all sides are equal. But in a triangle with equal sides, there cannot be a right angle.

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>>11477794

The trick is the small lines, which go through the sides.

They suggest equal length by default.

The trick is the small lines, which go through the sides.

They suggest equal length by default.

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Quoted By: >>11477985

Quoted By: >>11478006

IF YOU WANT THE ANSWER YOU HAVE TO KNOW SPHERICAL GEOMETRY

the answer is 19... yes it is possible

the answer is 19... yes it is possible

Quoted By: >>11478078

>>11477816

Like many faggots have already pointed out, the blackboard is actually a sphere and all three angles in the triangle are 90 degrees.

Also, I wish cancer upon everybody who thinks they're so very clever catching people off-guard with that little hash mark.

Like many faggots have already pointed out, the blackboard is actually a sphere and all three angles in the triangle are 90 degrees.

Also, I wish cancer upon everybody who thinks they're so very clever catching people off-guard with that little hash mark.

Quoted By: >>11478111 >>11478126 >>11478189

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>>11478078

http://mathworld.wolfram.com/SphericalTriangle.html

>The sum of the angles of a spherical triangle is between pi and 3pi radians (180 degrees and 540 degrees)

bawwwww im fucking stupid

http://mathworld.wolfram.com/SphericalTriangle.html

>The sum of the angles of a spherical triangle is between pi and 3pi radians (180 degrees and 540 degrees)

bawwwww im fucking stupid

Quoted By: >>11478148 >>11478211

>>11478078

You really don't seem to get it.

I repeat.

The blackboard is a SPHERE.

You can't draw a triangle with three right angles on a plane, but it's very easy on the surface of a sphere.

That's the trick. Once you see the hashmark in that picture, you have to understand that the picture is drawn in an intentionally misleading way. The blackboard isn't flat, it's a spehre.

You really don't seem to get it.

I repeat.

The blackboard is a SPHERE.

You can't draw a triangle with three right angles on a plane, but it's very easy on the surface of a sphere.

That's the trick. Once you see the hashmark in that picture, you have to understand that the picture is drawn in an intentionally misleading way. The blackboard isn't flat, it's a spehre.

Quoted By: >>11478151 >>11478160

Rather than relying on spherical geometry, it's far more likely the hash marks were simply misused and their only purpose is to link a side with the length next to it.

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>>11478126

non-euclidian geometry ftw. But srsly guys, this thread is built specifically to attract rage and fail. leave this thread and go on with your life.

non-euclidian geometry ftw. But srsly guys, this thread is built specifically to attract rage and fail. leave this thread and go on with your life.

Quoted By: >>11478242

>>11478139

>Rather than relying on spherical geometry, it's far more likely the hash marks were simply misused and their only purpose is to link a side with the length next to it.

go away... you just dont understand the genius of the problem

>Rather than relying on spherical geometry, it's far more likely the hash marks were simply misused and their only purpose is to link a side with the length next to it.

go away... you just dont understand the genius of the problem

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>>11478139

Well, of course, but that sort of thing assumes the person who created the problem wasn't a sophistic shithead who just wanted to feel smug when people failed to notice the hashmarks.

Well, of course, but that sort of thing assumes the person who created the problem wasn't a sophistic shithead who just wanted to feel smug when people failed to notice the hashmarks.

Quoted By: >>11478189

"Spherical geometry" is just a fancy way of saying, "I bent the sides so I can make any angle I damn well please."

Quoted By: >>11478251

>>11478126

>>You can't draw a triangle with three right angles on a plane, but it's very easy on the surface of a sphere.

That's because it isn't a fucking spherical blackboard. if all three ANGLES were right angles, THEY'D HAVE THE FUCKING SIGN TO SHOW IT. However, there's only 1 showing that it's a right angle. Therefore it's 45-45-90.

Get the fuck out troll.

>>You can't draw a triangle with three right angles on a plane, but it's very easy on the surface of a sphere.

That's because it isn't a fucking spherical blackboard. if all three ANGLES were right angles, THEY'D HAVE THE FUCKING SIGN TO SHOW IT. However, there's only 1 showing that it's a right angle. Therefore it's 45-45-90.

Get the fuck out troll.

Quoted By: >>11478237

Quoted By: >>11478263

>>11478212

i haven't been in school in 5 years

i rarely use commas and i don't distinguish between your you're and there their and they're.

i haven't been in school in 5 years

i rarely use commas and i don't distinguish between your you're and there their and they're.

Quoted By: >>11478257 >>11478274 >>11478279

>>11478151

No, we've been over this a million times, I get it. It's just retarded to assume right off the bat that the triangle is supposed to be on a sphere when the triangle isn't drawn with bent sides and the hash marks ALL have numbers/variables next to them (which defeats the purpose of hash marks). What would you think if you saw that problem on a test?

No, we've been over this a million times, I get it. It's just retarded to assume right off the bat that the triangle is supposed to be on a sphere when the triangle isn't drawn with bent sides and the hash marks ALL have numbers/variables next to them (which defeats the purpose of hash marks). What would you think if you saw that problem on a test?

Quoted By:

>>11478211

sorry but you are too stupid to be here...

using non euclidean geometry is the only solution

sorry but you are too stupid to be here...

using non euclidean geometry is the only solution

Quoted By:

>>11478206

Bah, I'll admit...I haven't touched physics since highschool. Biology major requies no knowledge of this.

Bah, I'll admit...I haven't touched physics since highschool. Biology major requies no knowledge of this.

Quoted By: >>11478294

Hello from /v/ again. Even if it's not 2D, there is no information on the other angles which means that "the solution" is an infinite set of solutions for all possible combinations of angles not accounted for so using the pythagorean theorem will not yield _the_ solution and anyone trying to claim that is wrong.

Quoted By:

>>11478242

depends on the course... if i was taking NON-FUCKING-EUCLIDEAN GEOMETRY THEN I WOULD KNOW WHAT TO DO... otherwise i'd ask if it was a typo

depends on the course... if i was taking NON-FUCKING-EUCLIDEAN GEOMETRY THEN I WOULD KNOW WHAT TO DO... otherwise i'd ask if it was a typo

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>>11478302

no shit? that is why the triangle appears as it does on the blackboard

YOU CANNOT TRANSLATE 3D to 2D I THOUGHT /a/ KNEW THIS

no shit? that is why the triangle appears as it does on the blackboard

YOU CANNOT TRANSLATE 3D to 2D I THOUGHT /a/ KNEW THIS

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Based on the background, the blackboard is about half Kafuka's height. Being so called spherical blackboard would have to have a much wider radius in order for it to protrude out of the wall and fit it perfectly. The arc length provided by such a size would not be sufficient enough to create the so called 90-90-90 degree angled spherical triangle because the size of the triangle shown is simply too small and no distortions are shown on the triangle as seen in a spherical triangle. Thus, the board must be flat.

Quoted By: >>11478451 >>11478490

oh jesus christ. THOSE ARE NOT CONGRUENCY HASHMARKS! They are simple tick marks to indicate the length of each line segment: 19, 19 and "x". The usage is probably not technically correct, but the small error is NOT a clue that the flat blackboard is actually a non-Euclidean surface. Don't overthink everything.

Quoted By: >>11478466

>>11478360

I mean that, since everyone is bawwing over how highschool faggots can't understand non-euclidean geometry and this show takes place in high school, put it together.

I mean that, since everyone is bawwing over how highschool faggots can't understand non-euclidean geometry and this show takes place in high school, put it together.

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Quoted By: >>11478632 >>11478666 >>11478790

>>11478420

They don't teach non-euclidean geometry since it's not a hard science.

It's entirely theory.

There is no proof that a non-euclidean space exists.

They don't teach non-euclidean geometry since it's not a hard science.

It's entirely theory.

There is no proof that a non-euclidean space exists.

Quoted By: >>11478524 >>11478527

>>11478206

Sorry, I got here late but here's your answer.

1/30 + 1/15 = 10 Ohms for the parallel part

20 Ohms + 10 Ohms = 30 Ohms total resistance

I = V/R = 9V / 30 Ohms = 0.3 A

So the answer is 300 milliamps.

Sorry, I got here late but here's your answer.

1/30 + 1/15 = 10 Ohms for the parallel part

20 Ohms + 10 Ohms = 30 Ohms total resistance

I = V/R = 9V / 30 Ohms = 0.3 A

So the answer is 300 milliamps.

Quoted By: >>11478590

>>11478390

That's what I've been saying, but everyone was too busy jerking off over the fact that they know some non-Euclidean geometry. What did Euclid ever do to you, faggots?

That's what I've been saying, but everyone was too busy jerking off over the fact that they know some non-Euclidean geometry. What did Euclid ever do to you, faggots?

Quoted By: >>11478636

>but its in japan. theyre 50x smarter than us

The Japanese are human beings like us, sadly, which means they screw up just like you and me.

The Japanese are human beings like us, sadly, which means they screw up just like you and me.

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>>11478478

Fuck I knew what I was doing was right, forgot that after 1/30 + 1/15 = 1/10 that you flip it over.

Fuck I knew what I was doing was right, forgot that after 1/30 + 1/15 = 1/10 that you flip it over.

Quoted By:

>11478524

Ah crap, this is why I always got 85% in school instead of 100%. I never read the questions.

Okay, so for the 15 Ohm resistor:

I = ((Rtotal - 15 Ohm) / Rtotal) * Itotal

= ((45 Ohm - 15 Ohm) / 45 Ohm) * 300mA

= 2/3 * 300mA

= 200mA

Always use the units in your calculations. If you are trying to get current and your units end as Volts per Ohm, then you're doing it right.

If they end as Ohms per Volt, then you might want to recheck your steps.

Ah crap, this is why I always got 85% in school instead of 100%. I never read the questions.

Okay, so for the 15 Ohm resistor:

I = ((Rtotal - 15 Ohm) / Rtotal) * Itotal

= ((45 Ohm - 15 Ohm) / 45 Ohm) * 300mA

= 2/3 * 300mA

= 200mA

Always use the units in your calculations. If you are trying to get current and your units end as Volts per Ohm, then you're doing it right.

If they end as Ohms per Volt, then you might want to recheck your steps.

Quoted By:

>>11478466

jesus fuck i hope you are a troll and not THAT stupid... euclidean geo just has more practical applications on earth

jesus fuck i hope you are a troll and not THAT stupid... euclidean geo just has more practical applications on earth

Quoted By: >>11478819 >>11478841

A: 19

B: 19

C: sqrt772

The figure is an isosceles triangle

Alpha: 45

Beta: 45

Gamma: 90

B: 19

C: sqrt772

The figure is an isosceles triangle

Alpha: 45

Beta: 45

Gamma: 90