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3 years ago

I really need this plzzzzzz

Mathematics

1 answer:

gulaghasi [49]3 years ago

4 0

Step-by-step explanation:

The exterior angle is the sum of the opposite interior angles of the triangle.

Therefore, m<D +m<C = 118°

=> 8y+3 +3y+5 = 118°

=> 11y = 118° - 8°

=> 11 y = 110°

=> y = 10°

m<D = 8y+3

= 8(10)+3 = 83°

m<C= 3(10)+5 = 35°

m<DEC = 180° -118° = 62°

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Answer:

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3 years ago

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rosijanka [135]

Hmph...

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