Let's solve each problem step by step to find the
perimeter of each polygon. The perimeter is the total distance around the shape, which means we add up the lengths of all the sides.
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A. Triangle
Sides: 4 cm, 6 cm, and 4 cm
Perimeter = 4 + 6 + 4 =
14 cm
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B. Rhombus (diamond shape)
All four sides are 9 in
Perimeter = 9 + 9 + 9 + 9 =
36 in
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C. Pentagon
Sides: 3 in, 7 in, 8 in, 5 in, 3 in
Perimeter = 3 + 7 + 8 + 5 + 3 =
26 in
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D. Parallelogram
Sides: 10 mm, 12 mm, 10 mm, 12 mm
Perimeter = 10 + 12 + 10 + 12 =
44 mm
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E. Trapezoid
Sides: 4 ft, 4 ft, 3 ft, 5 ft
Perimeter = 4 + 4 + 3 + 5 =
16 ft
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F. Irregular Pentagon
Sides: 5 ft, 4 ft, 4 ft, 4 ft, 3 ft
Perimeter = 5 + 4 + 4 + 4 + 3 =
20 ft
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G. Triangle
Sides: 7 cm, 15 cm, 10 cm
Perimeter = 7 + 15 + 10 =
32 cm
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H. Rectangle
Sides: 35 in, 7 in, 35 in, 7 in
Perimeter = 35 + 7 + 35 + 7 =
84 in
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I. Hexagon
Sides: 2 m, 2 m, 2 m, 2 m, 2 m, 2 m (all equal)
Perimeter = 2 × 6 =
12 m
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✔ Final Answers:
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A: 14 cm
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B: 36 in
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C: 26 in
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D: 44 mm
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E: 16 ft
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F: 20 ft
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G: 32 cm
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H: 84 in
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I: 12 m
Make sure to write your answers with units as instructed!
Let me know if you'd like this formatted for printing or need a visual explanation!
Parent Tip: Review the logic above to help your child master the concept of perimeter worksheet 5th grade.
