Surface area of a cylinder
Grade 7 Math Worksheet - Challenge Me
Circle the best answer, or write your answer on the line.
Do not round. Noah's mug is open at the top. Its radius is 4 cm and its height is 10 cm. How many square cm of paper cover the outside, bottom and side? Use π = 3.14.
Sketch, not to scale. Use π = 3.14. Do not round. Pia covers the outside of an open mug with paper, bottom and side. The radius is 3 cm, and the height is 9 cm. How many square cm of paper does it need?
Sketch, not to scale. Its net has a circle and a rectangle. Do not round. Ren's mug is open at the top, with radius 5 cm and height 11 cm. How much foil covers its whole outside, in square cm? Use π = 3.14. Do not round.
Ari paints a whole jar, ends and side. The radius is 5 cm, the height is 14 cm, and each square cm needs 0.01 mL. How many mL of paint is that?
Esme paints a whole can, ends and side. The radius is 3 cm, the height is 12 cm, and each square cm needs 0.01 mL. How many mL of paint is that?
Jun replaces a can with a taller one of the same radius, 4 cm. The height goes from 10 cm to 13 cm. How many more square cm of surface does the new one have?
Kira replaces a jar with a taller one of the same radius, 5 cm. The height goes from 8 cm to 12 cm. How many more square cm of surface does the new one have?
A label covers the whole side of Milo's can, 345.4 square cm in all. The radius is 5 cm. How tall is the can, in cm? Use π = 3.14. Do not round.
A label covers the whole side of Noah's jar, 251.2 square cm in all. The radius is 4 cm. How tall is the jar, in cm? Use π = 3.14. Do not round.
A label covers the whole side of Pia's drum, 263.76 square cm in all. The radius is 6 cm. How tall is the drum, in cm? Use π = 3.14. Do not round.