Question

Encontre o valor do ângulo X,Y e Z.

Foto acima!!
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Answer 1

$\mathsf{y+120^{\circ}=180^{\circ}}\\\mathsf{y=180^{\circ}-120^{\circ}}\\\huge\boxed{\boxed{\boxed{\boxed{\mathsf{y=60^{\circ}}}}}}$

$\mathsf{x+75^{\circ}=180^{\circ}}\\\mathsf{x=180^{\circ}-75^{\circ}}\\\huge\boxed{\boxed{\boxed{\boxed{\mathsf{x=105^{\circ}}}}}}$

$\mathsf{x+z=120^{\circ}}\\\mathsf{105^{\circ}+z=120^{\circ}}\\\mathsf{z=120^{\circ}-105^{\circ}}\\\huge\boxed{\boxed{\boxed{\boxed{\mathsf{z=15^{\circ}}}}}}$