Questions on Perimeter of a Triangle
Multiple-choice word problems based on real-life scenarios that require calculating the Perimeter of Triangles, tailored for Grade 6 students. Each problem includes five answer choices (A–E). At the end, you'll find the answers with full explanations.
Topic: Perimeter of a Triangle
Formula: Perimeter = side₁ + side₂ + side₃
✅ Questions:
1. A triangular garden has sides of 8 m, 7 m, and 5 m. What is its perimeter?
A) 18 m
B) 19 m
C) 20 m
D) 21 m
E) 22 m
2. A triangular sign has three equal sides, each measuring 6 meters. What is its perimeter?
A) 16 m
B) 17 m
C) 18 m
D) 19 m
E) 20 m
3. A triangle has side lengths of 10 cm, 12 cm, and 14 cm. What is the perimeter?
A) 34 cm
B) 35 cm
C) 36 cm
D) 37 cm
E) 38 cm
4. A tent is in the shape of a triangle with side lengths of 13 m, 9 m, and 8 m. What is the perimeter?
A) 28 m
B) 29 m
C) 30 m
D) 31 m
E) 32 m
5. A triangular piece of land has sides of 15 m, 12 m, and 10 m. What is the perimeter?
A) 36 m
B) 37 m
C) 38 m
D) 39 m
E) 40 m
6. A triangular sail has sides measuring 7.5 m, 6.5 m, and 5 m. What is its perimeter?
A) 18 m
B) 19 m
C) 19.5 m
D) 20 m
E) 21 m
7. A triangle has two equal sides of 11 cm and a base of 6 cm. What is the perimeter?
A) 27 cm
B) 28 cm
C) 29 cm
D) 30 cm
E) 31 cm
8. A triangular track has three sides: 100 m, 150 m, and 200 m. What is the total distance around the track?
A) 440 m
B) 450 m
C) 460 m
D) 470 m
E) 480 m
9. A triangular flag has sides of 2.3 m, 3.1 m, and 2.6 m. What is its perimeter?
A) 7.5 m
B) 7.8 m
C) 8.0 m
D) 8.2 m
E) 8.5 m
10. A triangle has all three sides measuring 9 cm. What is its perimeter?
A) 26 cm
B) 27 cm
C) 28 cm
D) 29 cm
E) 30 cm
11. The sides of a triangular mirror are 4.2 m, 5.1 m, and 3.7 m. What is the perimeter?
A) 12.5 m
B) 12.8 m
C) 13 m
D) 13.2 m
E) 13.5 m
12. A triangle in a school logo has sides of 6 cm, 6 cm, and 9 cm. What is the perimeter?
A) 19 cm
B) 20 cm
C) 21 cm
D) 22 cm
E) 23 cm
13. A piece of triangular cloth has sides of 14 cm, 10 cm, and 8 cm. What is the perimeter?
A) 31 cm
B) 32 cm
C) 33 cm
D) 34 cm
E) 35 cm
14. A triangle has sides measuring 12 m, 9 m, and 6 m. What is its perimeter?
A) 26 m
B) 27 m
C) 28 m
D) 29 m
E) 30 m
15. A triangular kite has equal sides of 5.5 m and a base of 4 m. What is the perimeter?
A) 14.5 m
B) 15 m
C) 15.5 m
D) 16 m
E) 16.5 m
16. A triangle has sides of 2.5 m, 3.0 m, and 4.5 m. What is the perimeter?
A) 9.5 m
B) 10 m
C) 10.5 m
D) 11 m
E) 11.5 m
17. A triangular parcel of land has equal sides of 18 m and a third side of 12 m. What is the perimeter?
A) 46 m
B) 47 m
C) 48 m
D) 49 m
E) 50 m
18. A triangle has sides of 17 cm, 13 cm, and 10 cm. What is the perimeter?
A) 39 cm
B) 40 cm
C) 41 cm
D) 42 cm
E) 43 cm
19. A tent flap is in the shape of a triangle with sides 3.3 m, 4.2 m, and 2.5 m. What is the perimeter?
A) 9.8 m
B) 10 m
C) 10.2 m
D) 10.5 m
E) 11 m
20. A triangle has sides of 6.6 m, 7.4 m, and 5 m. What is the perimeter?
A) 18.6 m
B) 18.8 m
C) 19 m
D) 19.2 m
E) 19.4 m
- Queations on Units of Length
- Questions on Perimeter of a Square
- Questions on Perimeter of a Rectangle
Answers and Explanations:
1. D → 8 + 7 + 5 = 20 m
2. C → 6 × 3 = 18 m
3. C → 10 + 12 + 14 = 36 cm
4. C → 13 + 9 + 8 = 30 m
5. A → 15 + 12 + 10 = 37 m
6. C → 7.5 + 6.5 + 5 = 19 m
7. C → 11 + 11 + 6 = 28 cm
8. C → 100 + 150 + 200 = 450 m
9. D → 2.3 + 3.1 + 2.6 = 8.0 m
10. B → 9 × 3 = 27 cm
11. B → 4.2 + 5.1 + 3.7 = 13 m
12. C → 6 + 6 + 9 = 21 cm
13. C → 14 + 10 + 8 = 32 cm
14. C → 12 + 9 + 6 = 27 m
15. C → 5.5 + 5.5 + 4 = 15.5 m
16. C → 2.5 + 3.0 + 4.5 = 10 m
17. C → 18 + 18 + 12 = 48 m
18. A → 17 + 13 + 10 = 40 cm
19. C → 3.3 + 4.2 + 2.5 = 10 m
20. C → 6.6 + 7.4 + 5 = 19 m
Share Online!
