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3241004551 [841]
2 years ago
9

HELPP IM FAILING MATH RN!! LC is 40°. What is the measure of arc CB?

Mathematics
2 answers:
wel2 years ago
6 0

Hi there!

\large\boxed{100^{o}}

∠C = 40° and triangle ABC is isosceles, therefore:

∠C = ∠A = 40°

Angles in a triangle sum up to 180°, so:

180 = 40 + 40 + ∠A

180 = 80 + ∠A

100 = ∠A

Thus, arc CB has a measure of 100°.

Alexxx [7]2 years ago
6 0

I hope this helps you

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