Question

Pythagorean theorem need this asp

Answer 1

x = 9.8

Explanation:

The hypotenuse of left triangle is a

The hypotenuse of left triangle is b

then a^2 + b^2 = (12 + 8)^2

then a^2 = x^2 + 12^2

and b^2 = x^2 + 8^2

substitute a and b

(x^2 + 12^2) + (x^2 + 8^2) = (12 + 8)^2

x^2 + 144 + x^2 + 64 = 400

2x^2 = 192

x^2 = 96

x = 9.79 or 9.8