sukiyoshi10
30.01.2021 •
Mathematics
If mZ1= 140, what is m_3?
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Ответ:
∠ 3 = 50°
Step-by-step explanation:
The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.
∠ 1 is an exterior angle of the triangle, so
90° + ∠ 3 = ∠ 1
90° + ∠ 3 = 140° ( subtract 90° from both sides )
∠ 3 = 50°
Ответ:
I don’t speak your languag ;-;
Step-by-step explanation: