If EC bisects Find BED

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asked Nov 5, 2019 192k views

5 votes

If EC bisects Find BED

Mathematics
middle-school

Lakisha asked

by Lakisha

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2 Answers

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Answer:

D. 136

Explanation:

GeNia answered Nov 7, 2019

by GeNia

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If EC bisects ∠BED, then m∠BEC = m∠DEC
11x + 2 = 8x + 20
11x - 8x = 20 - 2
3x = 18
x = 6

m∠BED = 2 * m∠BEC
= 2(11x + 2)
= 2(11*6 + 2)
= 2(66 + 2)
= 2 * 68
= 136°

Eike Thies answered Nov 10, 2019

by Eike Thies

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