Question

20^2=12^2+x^2 alguem me ajuda PVRRR

Answer 1

400=144+x²

400-144=x²

256=x²

V256= x

x=16

Answer 2

20² = 12² + x²
400 = 144 + x²
400 - 144 = x²
256 = x²
x² = 256
x = √256
x = 16