Andi C.

asked • 07/23/18

Which of the following could be the side lenths of a right triangle? A. 9m,12m,15 b. 9m,12m,16m c. 9m,9m,81m c. 9m,9m,12m

It's math I don't understand please help 

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Philip P. answered • 07/23/18

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Use the Pythagorean Theorem:
 
a2 + b2 = c2
 
where a and b are the two sides and c is the hypotenuse (the longest side).  If a2 + b2 = c2, then it is a right triangle.  If not, then it is not a right triangle.
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Philip P.

I'll do the second one for you: 9, 12, 16:
 
92 + 122 = 162
81 + 144 = 256
225 = 256
 
Nope, this is not a right triangle
 
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07/23/18

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