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26-06-2018
Mathematics

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One angle in a triangle is 115 degrees. The other two angles are congruent. What is the measure of one of the missing angles?

One angle in a triangle is 115 degrees The other two angles are congruent What is the measure of one of the missing angles class=

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26-06-2018

Hey there! :)

Triangles measure 180°

1 side = 100°

180 - 100 = 80

The measure of both unknown angles = 80°

Both are congruent, or the same. That means you have to divide by 2.

80 ÷ 2 = 40

? = 40°

Hope this helps :)

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