What theorem can be used alone to find the measure of A in ABC? im pretty sure it’s exterior angle theorem but im not sure

asked Jan 13, 2022 115k views

4 votes

What theorem can be used alone to find the measure of A in ABC?

im pretty sure it’s exterior angle theorem but im not sure

by Lads

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5 votes

Explanation:

thats right, it's the exterior angle theorem,

m L A = 117° - 59° = 58°

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