(for # 16 - 18) Mr. Garcia, a Mathematics teacher in the Junior High School provided a cut -out of a square to his students with a side whose measure is given in algebraic expression (3)
16. What must be the equation to be used in solving the area of the square? A =

Circle a has a diameter of 7 inches, a circumference of 21.98 inches, and an area of 38.465 square inches. the diameter of circle b is 6 inches, the circumference is 18.84 inches, and the area is 28.26 square inches. part a: using the formula for circumference, solve for the value of pi for each circle. (4 points) part b: use the formula for area and solve for the value of pi for each circle. (4 points)