Giving Brainliest and points if you help me answer this question correctly! Describe the shape that is formed by the cross section: A. an ellipse parallel to the base

B. an ellipse that is perpendicular to the base

C. a circle parallel to the base

D. a circle perpendicular to the base

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)