Question

17. Calcule as medidas indicadas pelas letras

Answer 1

Olá!

a)

$\boxed{z=108\º}\\\\x=y=180\º-108\º\\\boxed{x=y=72\º}$

b)

$\boxed{y=45\º}$

c)

$\boxed{x=120\º}\\\\z=180\º-120\º\\\boxed{z=60\º}$

Bons estudos!