Register
If ∠C and ∠D are vertical angles and m∠C=x and m∠D=−3x+80, what is m∠C? I'm super lost, can someone help?
145k views
2 votes
If ∠C and ∠D are vertical angles and m∠C=x and m∠D=−3x+80, what is m∠C?

I'm super lost, can someone help?

User Ravash Jalil
by
8.5k points

1 Answer

4 votes
Vertical angles are equal to each other, so:


x=-3x+80 4x=80 \tfrac{80}{4} = x x=20
User John Laffoon
by
8.3k points
← Prev Question Next Question →

Related questions

User Augustomen
asked Oct 11, 2018 139k views
∠C and ​ ∠D ​ are vertical angles with m∠C=−3x+58 and m∠D=x−2 . What is m∠D ?
Augustomen asked Oct 11, 2018
by Augustomen
7.8k points
2 answers
0 votes
139k views
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.5m questions

12.2m answers

Other Questions

How do you can you solve this problem 37 + y = 87; y =
What is .725 as a fraction
How do you estimate of 4 5/8 X 1/3
A bathtub is being filled with water. After 3 minutes 4/5 of the tub is full. Assuming the rate is constant, how much longer will it take to fill the tub?
A dealer sells a certain type of chair and a table for $40. He also sells the same sort of table and a desk for $83 or a chair and a desk for $77. Find the price of a chair, table, and of a desk.
Link Copied!