3 years ago

IXL problem please help ………………

Mathematics

1 answer:

cestrela7 [59]3 years ago

7 0

Answer:

126 degrees

Step-by-step explanation:

We are given BC is congruent to BE therefore BDE is congruent to BDC. We can use this to solve for p:

9p-81=5p-17

Move like terms to one side

4p=64

Divide 4 from both sides

p=16

Therefore:

BDC=9(16)-81

BDC=144-81

BDC=63

CDE=BDC+BDE

CDE=2(63)

CDE=126 degrees

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