chinitawalke chinitawalke

28-01-2021
Mathematics

contestada

Find m21.
57
93
132
123

Find m21 57 93 132 123 class=

Respuesta :

mhanifa mhanifa

28-01-2021

Answer:

123°

Step-by-step explanation:

Angle 1 is the exterior angle of the pictured triangle.

As we know the exterior angle is equal to sum of non-adjacent interior angles:

m∠ 1 = 60° + 63°
m∠ 1 = 123°

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