The surface area of a cylinder is given by the formula S = 30πr + 2πr2

How many times greater is this compared to a circle with A = πr2

Tcan be concluded that % of the seniors would prefer to see more candid pictures in this year's edition of the yearbook.

Solve this riddle: i am an odd number. i an less than 100. the some of my digit is 12. i am a multiple of 15. what number am i?

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)