Respuesta :

AyaanR
It’s a right angle triangle so u have it use Pythagorean theorem.

c^2 = a^2 + b^2
25^2 = 20^ 2 + b^2
625 = 400 + b^2
b^2 = 225
b = 15

X = 15
the answer is x = 15 :)

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