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Perimeter of a semicircle or quarter circle

Grade 7 math · Fieldbook Learning

Name ______________________ Date __________

Add the curved edge and the straight edges. Use π = 3.14.

  1. A quarter circle has a radius of 40 cm. Find its perimeter in cm (the curved edge plus the two straight edges). Use π = 3.14.
  2. A quarter circle has a radius of 8 cm. Find its perimeter in cm (the curved edge plus the two straight edges). Use π = 3.14.
  3. A semicircle has a diameter of 48 cm. Find its perimeter in cm (the curved edge plus the straight edge). Use π = 3.14.
  4. A quarter circle has a radius of 20 cm. Find its perimeter in cm (the curved edge plus the two straight edges). Use π = 3.14.
  5. A quarter circle has a radius of 22 cm. Find its perimeter in cm (the curved edge plus the two straight edges). Use π = 3.14.
  6. A quarter circle has a radius of 58 cm. Find its perimeter in cm (the curved edge plus the two straight edges). Use π = 3.14.
  7. A semicircle has a diameter of 42 cm. Find its perimeter in cm (the curved edge plus the straight edge). Use π = 3.14.
  8. A quarter circle has a radius of 14 cm. Find its perimeter in cm (the curved edge plus the two straight edges). Use π = 3.14.
  9. A semicircle has a diameter of 82 cm. Find its perimeter in cm (the curved edge plus the straight edge). Use π = 3.14.
  10. A quarter circle has a radius of 30 cm. Find its perimeter in cm (the curved edge plus the two straight edges). Use π = 3.14.
  11. A quarter circle has a radius of 46 cm. Find its perimeter in cm (the curved edge plus the two straight edges). Use π = 3.14.
  12. A semicircle has a diameter of 10 cm. Find its perimeter in cm (the curved edge plus the straight edge). Use π = 3.14.
  13. A semicircle has a diameter of 74 cm. Find its perimeter in cm (the curved edge plus the straight edge). Use π = 3.14.
  14. A quarter circle has a radius of 54 cm. Find its perimeter in cm (the curved edge plus the two straight edges). Use π = 3.14.
  15. A quarter circle has a radius of 42 cm. Find its perimeter in cm (the curved edge plus the two straight edges). Use π = 3.14.
  16. A quarter circle has a radius of 76 cm. Find its perimeter in cm (the curved edge plus the two straight edges). Use π = 3.14.
  17. A semicircle has a diameter of 122 cm. Find its perimeter in cm (the curved edge plus the straight edge). Use π = 3.14.
  18. A semicircle has a diameter of 146 cm. Find its perimeter in cm (the curved edge plus the straight edge). Use π = 3.14.
  19. A semicircle has a diameter of 72 cm. Find its perimeter in cm (the curved edge plus the straight edge). Use π = 3.14.
  20. A semicircle has a diameter of 38 cm. Find its perimeter in cm (the curved edge plus the straight edge). Use π = 3.14.
More free practice: fieldbooklearning.com/practice/grade-7/perimeter-of-a-semicircle-or-quarter-circle/

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Answer key: Perimeter of a semicircle or quarter circle

  1. 142.8
  2. 28.56
  3. 123.36
  4. 71.4
  5. 78.54
  6. 207.06
  7. 107.94
  8. 49.98
  9. 210.74
  10. 107.1
  11. 164.22
  12. 25.7
  13. 190.18
  14. 192.78
  15. 149.94
  16. 271.32
  17. 313.54
  18. 375.22
  19. 185.04
  20. 97.66