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

∠C and ​ ∠D ​ are vertical angles with m∠C=−2x+90 and m∠D=x−30 . What is m∠D ?
154k views
3 votes
∠C

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

User Phil McCullick
by
8.6k points

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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