peppabaconisfat peppabaconisfat
  • 12-05-2021
  • Mathematics
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In this rectangle, find m angle DEC.
Please help me!!!!

In this rectangle find m angle DEC Please help me class=

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Аноним Аноним
  • 12-05-2021

Answer:

118°

Step-by-step 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°

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