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3 years ago

Please help this is due today.

Mathematics

1 answer:

alex41 [277]3 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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