Surface area of a cylinder

Answer Key - Grade 7 Math Worksheet

Circle the best answer, or write your answer on the line.

1. 1.

   Esme's can has a radius of 4 cm and is 11 cm tall. What is its surface area in square cm, both ends and the side? Use π = 3.14. Do not round.

   376.8
2. 2.

   Kira's candle has a radius of 3 cm and is 18 cm tall. What is its surface area in square cm, both ends and the side? Use π = 3.14. Do not round.

   395.64
3. 3.

   Milo's can is 10 cm across and 11 cm tall. What is its surface area in square cm, both ends and the side? Use π = 3.14. Do not round.

   502.4
4. 4.

   Noah's jar is 8 cm across and 12 cm tall. What is its surface area in square cm, both ends and the side? Use π = 3.14. Do not round.

   401.92
5. 5.

   Pia's drum is 24 cm across and 10 cm tall. What is its surface area in square cm, both ends and the side? Use π = 3.14. Do not round.

   1657.92
6. 6.

   Ren's candle is 6 cm across and 15 cm tall. What is its surface area in square cm, both ends and the side? Use π = 3.14. Do not round.

   339.12
7. 7.

   Zee's candle has a radius of 4 cm and is 6 cm tall. What is its surface area in terms of π? Write it like 14π.

   80π
8. 8.

   Esme's jar has a radius of 8 cm and is 10 cm tall. Which expression gives its surface area in square cm, both ends and the side? Use π = 3.14.

   • 2 × 3.14 × 8 × 10
   • 3.14 × 8 × 8 × 10
   • 2 × 3.14 × 8 × 8 + 2 × 3.14 × 8 × 10
   • 3.14 × 8 × 8 + 2 × 3.14 × 8 × 10
9. 9.

   Jun's candle has a radius of 4 cm and is 13 cm tall. Which expression gives its surface area in square cm, both ends and the side? Use π = 3.14.

   • 2 × 3.14 × 4 × 4 + 2 × 3.14 × 4 × 13
   • 2 × 3.14 × 4 × 13
   • 3.14 × 4 × 4 × 13
   • 3.14 × 4 × 4 + 2 × 3.14 × 4 × 13
10. 10.

    A label wraps once around the side of Kira's can, radius 3.5 cm and height 10 cm. What is the label's area in square cm? Use π = 3.14. Do not round.

    219.8