Formulas
If the diameter of a circle is 50 cm, then what is the diameter?
25 cm
What is the circumference of a circle with a radius of 15 inches?
94.25 inches
What is the area of a circle with a radius of 17 mm?
907.92 mm2
A cylinder has a radius of 11 mm and a height of 5 mm. What is its surface area?
1105.84 mm2
A cylinder has a radius of 1 foot and a height of 3 feet. What is its volume?
9.42 feet3
What is the formula for the circumference of a circle?
C = 2πr or C = πd
257.61 m
What is the area of a circle, in terms of π, with a radius of 20.25 units?
410.0625π units2
A cylinder has a radius of 9.25 cm and a height of 12.75 cm. What is its surface area?
1278.63 cm2
A cylinder has a radius of 2.5 inches and a height of 7.5 inches. What is its volume?
147.26 inches3
What is the formula for the area of a circle?
A = πr2
What is the circumference, in terms of π, of a circle with a radius of 9.5 feet?
19π feet
What is the area of a circle with a diameter of 5 feet?
A cylinder has a diameter of 3 inches and a height of 2 inches. What is its surface area?
32.99 inches2
A cylinder has a diameter of 6 m and a height of 5 m. What is its volume?
141.37 m3
What is the formula for the volume of a cylinder?
V = πr2h
A circle has a circumference of 14 cm. What is its radius?
2.23 cm
What is the area, in terms of π, of a circle with a diameter of 0.85 m?
0.180625 m2
A cylinder has a diameter of 5.6 units and a height of 14.7 units. What is its surface area?
307.88 units2
A circle has a radius of 17 mm and a height of 23.5 mm. What is
6,791.5π mm3
What is the formula for the surface area of a cylinder?
S = 2πrh + 2πr2
A circle has a circumference of 54.5 mm. What is its radius?
8.67 mm
A circle has a circumference of 12 inches. What is its area?
11.46 inches2
A cylinder has a radius of 9.5 feet and a height of 10.5 feet. What is its surface area in terms of π?
380π feet2
The top part of a cylinder has an area of 97.12 square feet and a height of 145.64 feet.
14,144.56 feet3