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📐 Geometry

Perimeter of Triangle

Perimeter = sum of all sides

Formula

P = a + b + c

Perimeter = sum of all sides

Example

  • a = 5
  • b = 7
  • c = 8
  • P = 20
Result 20
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Grade 5 · Perimeter of Triangle

Easy 20 questions Worksheet #31795 For Perimeter of Triangle

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MathDigits Worksheet

Grade 5 · Perimeter of Triangle

Easy · 20 questions · Worksheet #31795 · Perimeter of Triangle

Name: ________________________

Date: ______________ Score: ______

  1. fill Find the perimeter of a triangle with sides 8 cm, 62 cm, and 65 cm. (P = a + b + c)
    ______________________________
  2. fill Find the perimeter of a triangle with sides 24 cm, 34 cm, and 69 cm. (P = a + b + c)
    ______________________________
  3. fill Find the perimeter of a triangle with sides 73 cm, 57 cm, and 35 cm. (P = a + b + c)
    ______________________________
  4. fill Find the perimeter of a triangle with sides 13 cm, 70 cm, and 47 cm. (P = a + b + c)
    ______________________________
  5. fill Find the perimeter of a triangle with sides 53 cm, 43 cm, and 33 cm. (P = a + b + c)
    ______________________________
  6. fill Find the perimeter of a triangle with sides 59 cm, 60 cm, and 17 cm. (P = a + b + c)
    ______________________________
  7. fill Find the perimeter of a triangle with sides 56 cm, 62 cm, and 37 cm. (P = a + b + c)
    ______________________________
  8. fill Find the perimeter of a triangle with sides 53 cm, 55 cm, and 55 cm. (P = a + b + c)
    ______________________________
  9. fill Find the perimeter of a triangle with sides 74 cm, 6 cm, and 71 cm. (P = a + b + c)
    ______________________________
  10. fill Find the perimeter of a triangle with sides 27 cm, 34 cm, and 78 cm. (P = a + b + c)
    ______________________________
  11. fill Find the perimeter of a triangle with sides 31 cm, 61 cm, and 7 cm. (P = a + b + c)
    ______________________________
  12. fill Find the perimeter of a triangle with sides 33 cm, 10 cm, and 30 cm. (P = a + b + c)
    ______________________________
  13. fill Find the perimeter of a triangle with sides 44 cm, 15 cm, and 41 cm. (P = a + b + c)
    ______________________________
  14. fill Find the perimeter of a triangle with sides 17 cm, 26 cm, and 18 cm. (P = a + b + c)
    ______________________________
  15. fill Find the perimeter of a triangle with sides 9 cm, 30 cm, and 79 cm. (P = a + b + c)
    ______________________________
  16. fill Find the perimeter of a triangle with sides 61 cm, 76 cm, and 64 cm. (P = a + b + c)
    ______________________________
  17. fill Find the perimeter of a triangle with sides 70 cm, 28 cm, and 54 cm. (P = a + b + c)
    ______________________________
  18. fill Find the perimeter of a triangle with sides 64 cm, 47 cm, and 25 cm. (P = a + b + c)
    ______________________________
  19. fill Find the perimeter of a triangle with sides 49 cm, 55 cm, and 23 cm. (P = a + b + c)
    ______________________________
  20. fill Find the perimeter of a triangle with sides 33 cm, 6 cm, and 36 cm. (P = a + b + c)
    ______________________________

Updated July 2026

FAQs

What is Perimeter of Triangle?

Perimeter of Triangle (perimeter triangle) is a geometry relationship written as Perimeter = sum of all sides or P = a + b + c. Students use it to solve unknowns when enough values are known.

How do you calculate Perimeter of Triangle step by step?

Write Perimeter = sum of all sides, substitute the known numbers carefully, then simplify. Worked walkthrough: a = 5 b = 7 c = 8 P = 20.

When is Perimeter of Triangle taught in school?

Perimeter of Triangle usually appears in geometry units during middle or secondary school. Match difficulty with MathDigits grade worksheets so practice fits the curriculum year.

What is a real example of Perimeter of Triangle?

On this page the worked result is 20. Generate a formula worksheet below for more unique practice sets.

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