Question

determine os valores de x e y respectivamente nas figuras a seguir


15 e 68°

10 e 75°

5 e 180°

48 e 79°

30 e 60°​

Answer 1

Vamos lá !!

Descobrindo X

$15x - 45 = 12x - 15$

$12x - 12x = - 15 + 45$

$3x = 30$

$x = \frac{30}{3}$

$\red{\boxed{x = 10°}}$

Determinando os ângulos :

$15x - 45 = 12x - 15$

$15 \times 10 - 45 = 12 \times 10 - 15$

$150 - 45 = 120 - 15$

$105</strong><strong>°</strong><strong> = 105</strong><strong>°</strong><strong>$

Descobrindo Y

$y + y + 105 + 105 = 360$

$2y = 360 - 105 - 105$

$2y = 360 - 210$

$2y = 150$

$y = \frac{150}{2}$

$\red{\boxed{y = 75°}}$

Bons estudos .