Answer:
153.86
Step-by-step explanation:
7^2 x 3.14
C. CONCAVE
A mirror with a reflecting surface that caves inward is said to be CONCAVE.
Clue: caves inward. )(
Convex has an outline of surface that cave outward. It is like the outside of the circle or sphere. ()
B because the distance between p to b is 1/4 of the line and the distance between p to a is 3/4 of the line