Question

Determine o valor de x nos triangulos retângulos.​

Answer 1

a)

$30 + 50 + x = 180 \\ x = 180 - 30 - 50 \\ x = 100$

b)

$20 + 90 + x = 180 \\ x = 180 - 20 - 90 \\ x = 70$

c)

$15 + 20 + x = 180 \\ x = 180 - 15 - 20 \\ x = 145$