O.2

원의 둘레

4분기 (4~6월)

π ≈ 3.14를 이용해 원의 둘레 구하기

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문제 수
Daniel Math Academy · Grade 6 Math

Circumference

Skill O.2 · Circles · ★★☆ Medium · Quarter 4

Name
 
Date
 
Score/ 6

Use π ≈ 3.14. Include units in your answers.

Example
d = 10 cm
C =31.4 cm

Think: . If you are given the radius, double it first.

  1. 1
    r = 4 in
    Find the circumference. 
  2. 2
    r = 6 ft
    Find the circumference. 
  3. 3
    d = 26 mm
    Find the circumference. 
  4. 4
    r = 6 cm
    Find the circumference. 
  5. 5
    d = 16 in
    Find the circumference. 
  6. 6
    r = 19 mm
    Find the circumference. 
Daniel Math Academy · danielmath.comWorksheet #sfv83t2 · Page 1 / 2
Daniel Math Academy · Grade 6 Math

Answer Key

O.2 Circumference · ★★☆ Medium

  1. 125.12 in
  2. 237.68 ft
  3. 381.64 mm
  4. 437.68 cm
  5. 550.24 in
  6. 6119.32 mm
Daniel Math Academy · danielmath.comWorksheet #sfv83t2 · Answer Key · Page 2 / 2