R.3

다각형의 둘레

4분기 (4~6월)

변의 길이를 모두 더해 둘레 구하기, 둘레로 모르는 변의 길이 구하기

난이도
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Daniel Math Academy · Grade 5 Math

Perimeter of Polygons

Skill R.3 · Area, perimeter & volume · ★★☆ Medium · Quarter 4

Name
 
Date
 
Score/ 6

Find the perimeter, or the missing side.

Example
16 cm11 cm17 cm24 cm
Perimeter =68 cm

Think: Perimeter is the distance around: add every side, .

  1. 1
    22 ft31 ft31 ft24 ft45 ft
    Find the perimeter. 
  2. 2
    35 in35 in35 in33 in38 in32 in
    Find the perimeter. 
  3. 3
    19 in22 in23 in19 in37 in
    Find the perimeter. 
  4. 4
    39 in38 in39 in37 in42 in35 in
    Find the perimeter. 
  5. 5
    21 ft27 ft27 ft21 ft41 ft
    Find the perimeter. 
  6. 6
    25 ft31 ft31 ft26 ft50 ft
    Find the perimeter. 
Daniel Math Academy · danielmath.comWorksheet #77xuc9z · Page 1 / 2
Daniel Math Academy · Grade 5 Math

Answer Key

R.3 Perimeter of Polygons · ★★☆ Medium

  1. 1153 ft
  2. 2208 in
  3. 3120 in
  4. 4230 in
  5. 5137 ft
  6. 6163 ft
Daniel Math Academy · danielmath.comWorksheet #77xuc9z · Answer Key · Page 2 / 2