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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 4 · Perimeter of Triangle

Easy 20 questions Worksheet #46598 For Perimeter of Triangle

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Grade 4 · Perimeter of Triangle

Easy · 20 questions · Worksheet #46598 · Perimeter of Triangle

Name: ________________________

Date: ______________ Score: ______

  1. fill Find the perimeter of a triangle with sides 37 cm, 6 cm, and 10 cm. (P = a + b + c)
    ______________________________
  2. fill Find the perimeter of a triangle with sides 42 cm, 14 cm, and 46 cm. (P = a + b + c)
    ______________________________
  3. fill Find the perimeter of a triangle with sides 39 cm, 13 cm, and 24 cm. (P = a + b + c)
    ______________________________
  4. fill Find the perimeter of a triangle with sides 7 cm, 20 cm, and 14 cm. (P = a + b + c)
    ______________________________
  5. fill Find the perimeter of a triangle with sides 44 cm, 7 cm, and 32 cm. (P = a + b + c)
    ______________________________
  6. fill Find the perimeter of a triangle with sides 33 cm, 49 cm, and 44 cm. (P = a + b + c)
    ______________________________
  7. fill Find the perimeter of a triangle with sides 11 cm, 41 cm, and 40 cm. (P = a + b + c)
    ______________________________
  8. fill Find the perimeter of a triangle with sides 47 cm, 3 cm, and 20 cm. (P = a + b + c)
    ______________________________
  9. fill Find the perimeter of a triangle with sides 38 cm, 29 cm, and 13 cm. (P = a + b + c)
    ______________________________
  10. fill Find the perimeter of a triangle with sides 50 cm, 29 cm, and 11 cm. (P = a + b + c)
    ______________________________
  11. fill Find the perimeter of a triangle with sides 26 cm, 11 cm, and 49 cm. (P = a + b + c)
    ______________________________
  12. fill Find the perimeter of a triangle with sides 37 cm, 16 cm, and 20 cm. (P = a + b + c)
    ______________________________
  13. fill Find the perimeter of a triangle with sides 49 cm, 16 cm, and 13 cm. (P = a + b + c)
    ______________________________
  14. fill Find the perimeter of a triangle with sides 15 cm, 4 cm, and 48 cm. (P = a + b + c)
    ______________________________
  15. fill Find the perimeter of a triangle with sides 31 cm, 48 cm, and 27 cm. (P = a + b + c)
    ______________________________
  16. fill Find the perimeter of a triangle with sides 12 cm, 10 cm, and 46 cm. (P = a + b + c)
    ______________________________
  17. fill Find the perimeter of a triangle with sides 3 cm, 50 cm, and 8 cm. (P = a + b + c)
    ______________________________
  18. fill Find the perimeter of a triangle with sides 19 cm, 35 cm, and 27 cm. (P = a + b + c)
    ______________________________
  19. fill Find the perimeter of a triangle with sides 50 cm, 39 cm, and 38 cm. (P = a + b + c)
    ______________________________
  20. fill Find the perimeter of a triangle with sides 16 cm, 21 cm, and 38 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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