Answer:
4 Pairs.
Explanation:
A vertical angle is a set of two opposite angles, they show up when two lines intersect. Their sum is also 180°.
The answer is Vertical angles are equal.
Answer:
32
Step-by-step explanation:
2x+3x+20=180
x = 32
9/10×4=36/10 or 3 3/5. As a result, they have used 3 3/5 boxes of paper in 4 days. Hope it help!