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Pls help me i need help

Pls help me i need help-example-1

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3 votes

Answer:

b) 31.25

Explanation:

Since it is an isosceles triangle, the two missing angles are equal.

The sum of the angle measures in a triangle is 180 degrees.

Angle D and E are both x

So we set up an equation:

180 = 117.5 + x + x

180 = 117.5 +2x

62.5 = 2x

x = 31.25

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