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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 6 · Perimeter of Triangle

Easy 20 questions Worksheet #18652 For Perimeter of Triangle

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MathDigits Worksheet

Grade 6 · Perimeter of Triangle

Easy · 20 questions · Worksheet #18652 · Perimeter of Triangle

Name: ________________________

Date: ______________ Score: ______

  1. fill Find the perimeter of a triangle with sides 62 cm, 83 cm, and 48 cm. (P = a + b + c)
    ______________________________
  2. fill Find the perimeter of a triangle with sides 48 cm, 9 cm, and 62 cm. (P = a + b + c)
    ______________________________
  3. fill Find the perimeter of a triangle with sides 25 cm, 90 cm, and 74 cm. (P = a + b + c)
    ______________________________
  4. fill Find the perimeter of a triangle with sides 47 cm, 30 cm, and 22 cm. (P = a + b + c)
    ______________________________
  5. fill Find the perimeter of a triangle with sides 47 cm, 64 cm, and 21 cm. (P = a + b + c)
    ______________________________
  6. fill Find the perimeter of a triangle with sides 42 cm, 59 cm, and 86 cm. (P = a + b + c)
    ______________________________
  7. fill Find the perimeter of a triangle with sides 69 cm, 58 cm, and 15 cm. (P = a + b + c)
    ______________________________
  8. fill Find the perimeter of a triangle with sides 81 cm, 45 cm, and 78 cm. (P = a + b + c)
    ______________________________
  9. fill Find the perimeter of a triangle with sides 13 cm, 42 cm, and 82 cm. (P = a + b + c)
    ______________________________
  10. fill Find the perimeter of a triangle with sides 89 cm, 83 cm, and 92 cm. (P = a + b + c)
    ______________________________
  11. fill Find the perimeter of a triangle with sides 61 cm, 33 cm, and 59 cm. (P = a + b + c)
    ______________________________
  12. fill Find the perimeter of a triangle with sides 11 cm, 85 cm, and 53 cm. (P = a + b + c)
    ______________________________
  13. fill Find the perimeter of a triangle with sides 20 cm, 54 cm, and 70 cm. (P = a + b + c)
    ______________________________
  14. fill Find the perimeter of a triangle with sides 85 cm, 29 cm, and 100 cm. (P = a + b + c)
    ______________________________
  15. fill Find the perimeter of a triangle with sides 54 cm, 62 cm, and 83 cm. (P = a + b + c)
    ______________________________
  16. fill Find the perimeter of a triangle with sides 54 cm, 80 cm, and 31 cm. (P = a + b + c)
    ______________________________
  17. fill Find the perimeter of a triangle with sides 89 cm, 59 cm, and 20 cm. (P = a + b + c)
    ______________________________
  18. fill Find the perimeter of a triangle with sides 74 cm, 36 cm, and 55 cm. (P = a + b + c)
    ______________________________
  19. fill Find the perimeter of a triangle with sides 39 cm, 36 cm, and 6 cm. (P = a + b + c)
    ______________________________
  20. fill Find the perimeter of a triangle with sides 3 cm, 5 cm, and 66 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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