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anonymous
 5 years ago
Triangle ABC is a 45 degree45 degree90 degree in a sphere such that B is the center of the sphere and A and C are points on the sphere. Given the hypotenue of (trangle)ABC is 8√2 units, what is the surface area of the sphere?
A.) 320π square units
B.)85π square units
C.)256π square units
D.) 192π square units
The pic is there shown when you click on the question...Please help me
anonymous
 5 years ago
Triangle ABC is a 45 degree45 degree90 degree in a sphere such that B is the center of the sphere and A and C are points on the sphere. Given the hypotenue of (trangle)ABC is 8√2 units, what is the surface area of the sphere? A.) 320π square units B.)85π square units C.)256π square units D.) 192π square units The pic is there shown when you click on the question...Please help me

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0okay, that image was not that helpful. What are the special properties on a 454590 triangle?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0i dont get what you asking

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0What is special about having a triangle ABC that is a 45 degree45 degree90 degree?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0It's a special triangle, correct? http://www.regentsprep.org/Regents/math/algtrig/ATT2/Ltri45.htm

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0so we know the hypotenuse. Therefore we can figure out the radius (as it's the legs of the triangle). Then from the radius we know the sphere's surface area equation. Get it?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0okay so i got D is that correct?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0erm... I got something else.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0what did you get... I am confused lol

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Okay. You have the hypotenuse is 8Sqrt[2] so the leg is simply 8. Then we use the equation for surface area of a sphere (or derivative of the volume equation)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0then we get 256pi or C

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0can you explain that?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0\[Surface Area= 4\pi r^2\] So we plug in r=8; 4*8^2= 4*64=256 We ignored the pi initially since we realized that the pi was already built into the answers. Then we get 256pi or answer C

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0ohhh thanks so much :)
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