Angles 1 and 3 are vertical lines and because they are vertical, both angles equal each other.
Yeah around 41%, what u can do to get the answer is just 20 divided by 48
4

This is because there is an imaginary 1 in front of the first sqrt.
Answer:
21
Step-by-step explanation:
factors of 42: 1,42, 2,<u>21</u>, 3,14, 6,7
factors of 63: 1,63, 3,<u>21</u>, 7,9