Question

Calcule o valor de X nos triângulos retângulos

Answer 1

a)x²= 6² + 8²
x²= 36 + 64
x²= 100
x= 10
b)x²= 12² + 9²
x² = 144 + 81
x² = 225
x = 15
c)5² = x²+4² 
25= x²+ 16
9 = x²
x = 3
d)20² = (4x)² + (3x)²
400 = 16x² + 9x²
400 = 25x²
x² = 16
x = 4