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In a 45° 45° 90° right triangle, the length of the hypotenuse is 15. How long are the legs?
 one year ago
 one year ago
In a 45° 45° 90° right triangle, the length of the hypotenuse is 15. How long are the legs?
 one year ago
 one year ago

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tcarroll010Best ResponseYou've already chosen the best response.1
Because the legs will be equal in a 454590 right triangle, the equation: a^2 + b^2 = c^2 becomes a^2 + a^2 = c^2 or, better, yet: 2a^2 = c^2 c=15, so: 2a^2 = 15^2 so, a = sqrt[(15^2)/2]
 one year ago

rebecca1233Best ResponseYou've already chosen the best response.0
so whats the othervall answer ?
 one year ago

tcarroll010Best ResponseYou've already chosen the best response.1
You first square 15. Take that # and divide by 2. Take that answer and get the square root of it.
 one year ago

aroubBest ResponseYou've already chosen the best response.0
Or, you can say that: in a 454590 triangle hypotenuse=sqrt2 times any of the legs so now you just substitute.
 one year ago
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