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Find the measure of the angle
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Find the measure of the angle

Find the measure of the angle-example-1
User Jongbin Park
by
8.1k points

1 Answer

5 votes

Answer:

75

Explanation:

We know that EA is a straight line(180) therefore

ang(ECD) = 180 - 115 = 65

The the sum of angles in a triangle is 180 as well therefore:

ang(DEC) = 180 - ang(EDC) - ang(ECD) = 180 - 40 - 65 = 75

User Tom Page
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