Question

Please help this is due today.

Answer 1

`b = 90`

`c=80`

`d =100`

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`