Answer:
measure of angle 1=180-123=57°[exterior angle is supplementary]
I feel like your answer would be 9.2 cm
Answer: 10
Step-by-step explanation: We can just count the number of vertices in the star and each vertex makes an angle. There are ten vertices in a star and thus ten angles.
Answer:
14
Step-by-step explanation:
6+8=14
Answer: y=-2
Step-by-step explanation: y=-2 is a horizontal line containing the points (2,-2) and (0,-2).
