Circles: circumference and area

Grade 6 Math Worksheet - Challenge Me

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

  1. Tala rolls a bike wheel with a diameter of 60 cm (no brakes needed). How far does it roll when the wheel turns 6 times, in cm? Use π = 3.14.

  2. Zee rolls a scooter wheel with a diameter of 20 cm. How far does it roll when the wheel turns 7 times, in cm? Use π = 3.14.

  3. Bo rolls a toy car wheel with a diameter of 6 cm. How far does it roll when the wheel turns 20 times, in cm? Use π = 3.14.

  4. Esme plans a round pond (diameter 6 ft) inside a square garden with sides of 12 ft. How much of the garden is not covered by the pond, in square ft? Use π = 3.14.

  5. Jun plants a round flower bed (diameter 6 ft) in a square lawn with sides of 14 ft. How much of the lawn is not covered, in square ft? Use π = 3.14.

  6. Kira puts a round cookie (diameter 8 cm) on a square napkin with sides of 16 cm. How much of the napkin is not covered by the cookie, in square cm? Use π = 3.14.

  7. Milo marks out a round circus tent floor (diameter 10 m) on a square playground with sides of 20 m. How much of the playground is not covered, in square m? Use π = 3.14.

  8. Noah measures 31.4 ft around a play tent floor (its circumference). What is its diameter, in ft? Use π = 3.14.

  9. Ren measures 125.6 cm around a drum top (its circumference). What is its diameter, in cm? Use π = 3.14.

  10. Zee measures 94.2 cm around a tree trunk (its circumference). What is its diameter, in cm? Use π = 3.14.

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Circles: circumference and area

Answer Key - Grade 6 Math Worksheet - Challenge Me

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

  1. Tala rolls a bike wheel with a diameter of 60 cm (no brakes needed). How far does it roll when the wheel turns 6 times, in cm? Use π = 3.14.

    1130.4
  2. Zee rolls a scooter wheel with a diameter of 20 cm. How far does it roll when the wheel turns 7 times, in cm? Use π = 3.14.

    439.6
  3. Bo rolls a toy car wheel with a diameter of 6 cm. How far does it roll when the wheel turns 20 times, in cm? Use π = 3.14.

    376.8
  4. Esme plans a round pond (diameter 6 ft) inside a square garden with sides of 12 ft. How much of the garden is not covered by the pond, in square ft? Use π = 3.14.

    115.74
  5. Jun plants a round flower bed (diameter 6 ft) in a square lawn with sides of 14 ft. How much of the lawn is not covered, in square ft? Use π = 3.14.

    167.74
  6. Kira puts a round cookie (diameter 8 cm) on a square napkin with sides of 16 cm. How much of the napkin is not covered by the cookie, in square cm? Use π = 3.14.

    205.76
  7. Milo marks out a round circus tent floor (diameter 10 m) on a square playground with sides of 20 m. How much of the playground is not covered, in square m? Use π = 3.14.

    321.5
  8. Noah measures 31.4 ft around a play tent floor (its circumference). What is its diameter, in ft? Use π = 3.14.

    10
  9. Ren measures 125.6 cm around a drum top (its circumference). What is its diameter, in cm? Use π = 3.14.

    40
  10. Zee measures 94.2 cm around a tree trunk (its circumference). What is its diameter, in cm? Use π = 3.14.

    30