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Daniel Math Academy · Grade 6 Math

Unit Review: Circles

Grade 6 · 4 skills · ★★☆ Medium

Name
 
Date
 
Score/ 16

O.1Include units in your answers.

  1. 1
    r = 19 ft
    Find the diameter. 
  2. 2
    r = 16 m
    Find the diameter. 
  3. 3
    r = 2 mm
    Find the diameter. 
  4. 4
    d = 32 cm
    Find the radius. 

O.2Use π ≈ 3.14. Include units in your answers.

  1. 5
    d = 18 cm
    Find the circumference. 
  2. 6
    d = 26 ft
    Find the circumference. 
Daniel Math Academy · danielmath.comWorksheet #47ugrep · Page 1 / 4
Daniel Math Academy · Grade 6 Math
Unit Review: Circles

O.2O.3O.4Use π ≈ 3.14. Include units in your answers. (continued)

  1. 7
    r = 13 ft
    Find the circumference. 
  2. 8
    r = 12 cm
    Find the circumference. 
  3. 9
    d = 20 m
    Find the area. 
  4. 10
    d = 6 in
    Find the area. 
  5. 11
    r = 6 mm
    Find the area. 
  6. 12
    r = 10 in
    Find the area. 
  7. 13
    r = 10 ft
    Find the circumference. 
  8. 14
    d = 38 mm
    Find the circumference. 
Daniel Math Academy · danielmath.comWorksheet #47ugrep · Page 2 / 4
Daniel Math Academy · Grade 6 Math
Unit Review: Circles

O.4Use π ≈ 3.14. Include units in your answers. (continued)

  1. 15
    d = 30 ft
    Find the circumference. 
  2. 16
    r = 12 mm
    Find the circumference. 
Daniel Math Academy · danielmath.comWorksheet #47ugrep · Page 3 / 4
Daniel Math Academy · Grade 6 Math

Answer Key

Unit Review: Circles · ★★☆ Medium

O.1Radius & Diameter

  1. 138 ft
  2. 232 m
  3. 34 mm
  4. 416 cm

O.2O.3O.4Use π ≈ 3.14. Include units in your answers.

  1. 556.52 cm
  2. 681.64 ft
  3. 781.64 ft
  4. 875.36 cm
  5. 9314 m²
  6. 1028.26 in²
  7. 11113.04 mm²
  8. 12314 in²
  9. 1362.8 ft
  10. 14119.32 mm
  11. 1594.2 ft
  12. 1675.36 mm
Daniel Math Academy · danielmath.comWorksheet #47ugrep · Answer Key · Page 4 / 4