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27-10-2022
Mathematics

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100 POINTS
Quadrilateral ABCD has the following angle measures:

m∠A = 112°, m∠B = 130°, m∠C = ?°, m∠D = 90°

What is m∠C?

Respuesta :

mhanifa mhanifa

27-10-2022

Answer:

m∠C = 28°

Step-by-step explanation:

Interior angles of the quadrilateral sum to 360°:

m∠A + m∠B + m∠C + m∠D = 360
112 + 130 + m∠C + 90 = 360
m∠C + 332 = 360
m∠C = 360 - 332
m∠C = 28

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