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Radio Controlled · Answer 1 · 2023-06-08T22:43:52+0000

The interior angles have to add up to 180 degrees so you do 57 + 79= 136 then you do 180 - 136 = 44. 44 is your other interior angle and your exterior angle is 180-44=136
X=136
Your interior angle and exterior angle adds up to 180

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