S945274 S945274

30-03-2021
Mathematics

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WILL GIVE BRAINLIEST!
Find the measure of ∠a. (Let b = 66°, and let c = 172°.)
m∠a =
°

WILL GIVE BRAINLIEST Find the measure of a Let b 66 and let c 172 ma class=

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Megabruh9000 Megabruh9000

30-03-2021

Answer: a = 122*

The three angles added together form a circle or 360*.

Set a + b + c = 360 and solve for a

a + 66 + 172 = 360

Subtract 238 from both sides to get a

a = 122*

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