Question

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Answer 1

Respuesta:

Explicación paso a paso:

Planteamiento

A = B + 12°

C = 2B + 8°

Ecuación:

A + B + C = 180°

(B + 12°) + B + (2B + 8°) = 180°

4B + 20° = 180°

4B = 180° - 20°

4B = 160°

B = 160°/4

B = 40°

A = B + 12°

A = 40° + 12°

A = 52°

C = 2B + 8°

C = 2(40°) + 8

C = 80° + 8°

C = 88°