Respuesta :

Use the Pythagorean theorem for this. (a^2+b^2=c^2)

a=9, b=12, c=x

9^2+12^2=c^2
81 + 144 = c^2
225 = c^2
c =15 

the answer is c



GamerGeorge101
If we use Pythagorean Theorem to answer this question (a^2 + b^2 = c^2) then it will be 9^2 + 12^2 = x^2.

9^2 + 12^2 = x^2
81 + 144 = x^2 
225 = x^2
√225 = 15

x = 15

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