Question

Calcula el valor de X:

Answer 1

Explicación paso a paso:

y + z = 210°

y = 210° - z

y + B + a = 180°

210° - z + B + a = 180°

210° - 180° + B + a = z

30° + B + a = z

z + B + a = 180°

30° + B + a + B + a = 180°

2B + 2a = 180° - 30°

2a = 150° - 2B

a = (150° - 2B)/2

a = 75° - B

30° + B + a = z

30° + B + 75° - B = z

105° = z

z + x = 180°

105° + x = 180°

x = 180° - 105°

x = 75°