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Licemer1 [7]
2 years ago
9

Please help this is due today.

Mathematics
1 answer:
alex41 [277]2 years ago
6 0

Answer:

b = 90

c=80

d =100

Step-by-step explanation:

Given

See attachment

Required

Find b, c and d

First, we solve for b using:

b + 10 + b - 10 = 180 --- base angles of a parallelogram

Collect like terms

b + b =180+10-10

2b = 180

Solve for b

b = 180/2

b = 90

Then, we have:

d =b + 10

c = b - 10 --- opposite angles

So, we have:

d =90 + 10

d =100

c = 90 - 10

c=80

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