154k views
3 votes
∠C

and ​
∠D
​ are vertical angles with 
m∠C=−2x+90
and 
m∠D=x−30
.
 
What is
m∠D
?

2 Answers

2 votes
I’m asking the same question please help us!!! Thank you
User Lich
by
8.2k points
4 votes

m∠C=m∠Dx=−3x+804x=80x=20

m∠C=x∘=20∘

User ItsGeorge
by
8.0k points

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