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Pleaseee help please like ASAPpp

Pleaseee help please like ASAPpp-example-1
User Nikolaus
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Answer: b=90,d=100,c=80

Explanation:

A parallelogram's interior angles have an interesting property.

Two adjoining angles add up to 180 degrees.

Therefore, we can find that d+b-10=180

d+b=190

next, let's use the same property again to find b

b-10+b+10=2b=180

Therefore, b = 90

Now let's set up the equation for c.

b+10+c=180

b+c=170

90+c=170

c=80

d+b=190

d+90=190

d=100

Therefore, b=90,d=100,c=80

User Anson
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