Surface area of a cylinder
Grade 7 Math Worksheet - Challenge Me
Circle the best answer, or write your answer on the line.
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.
Zee paints a whole can, ends and side. The radius is 4 cm, the height is 11 cm, and each square cm needs 0.01 mL. How many mL of paint is that?
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?
Bo paints a whole drum, ends and side. The radius is 10 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?
Luz replaces a drum with a taller one of the same radius, 10 cm. The height goes from 6 cm to 9 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 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.