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2 years ago

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

Mathematics

1 answer:

storchak [24]2 years ago

4 0

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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hope it helps!

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