Question

an artist painting from a photo begins with a geometric sketch to match angle measures. what is the value of z?
z =
(type a whole number.)

Explanation:

Step1: Aplica la propiedad de la suma de ángulos en un triángulo.

La suma de los ángulos internos de un triángulo es 180°. Entonces, $z + 39^{\circ}+105^{\circ}=180^{\circ}$.

Step2: Resuelve para z.

$z=180^{\circ}-(39^{\circ}+105^{\circ})$.
$z = 180^{\circ}-144^{\circ}$.
$z = 36^{\circ}$

Answer:

36