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In this rectangle, find m angle DEC. Please help me!!!!
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2 votes
In this rectangle, find m angle DEC.
Please help me!!!!

In this rectangle, find m angle DEC. Please help me!!!!-example-1
User Fhtagn
by
5.9k points

1 Answer

4 votes

Answer:

118°

Explanation:

EDC is 31° and ECD has the same measure. (Triangle DEC is isosceles)

The total sum of angle EDC and ECD is 31 + 31 = 62°

The total sum of all the angle measures in a triangle is 180°, so just subtract 62 from 180 to get the measure of angle DEC.

180 - 62 = 118°

User Bryan Porter
by
6.0k points
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