Heron’s Formula Class 9 MCQs Questions with Answers

1. The sides of a triangle are 56 cm, 60 cm and 52 cm long. Then the area of the triangle is

2. The sides of a parallelogram are 100 m each and length of the longest diagonal is 160m. The area of a parallelogram is:

3. The sides of a triangle are in the ratio of 3: 5: 7 and its perimeter is 300 cm. Its area will be:

4. The area of an isosceles triangle having base 2 cm and the length of one of the equal sides 4 cm is

5. The perimeter of an equilateral triangle is 60 m. The area is

6. The sides of a triangle are in the ratio 12: 17: 25 and its perimeter is 540cm. The area is:

7. The perimeter of an equilateral triangle is 60 m. The area is

8. The sides of a triangle are 35 cm, 54 cm and 61 cm, respectively. The length of its longest altitude

9. The area of triangle with given two sides 18cm and 10cm, respectively and perimeter equal to 42 cm is:

10. The length of each side of an equilateral triangle having an area of 9√3 cm² is

11. The sides of a triangle are 122 m, 22 m and 120 m respectively. The area of the triangle is:

12. The area of an equilateral triangle having side length equal to √3/4cm is:

13. The edges of a triangular board are 6 cm, 8 cm and 10 cm. The cost of painting it at the rate of 9 paise per cm² is

14. The sides of a triangle are 35 cm, 54 cm and 61 cm. The length of its longest altitude is

15. The base of a right triangle is 8 cm and the hypotenuse is 10 cm. Its area will be

16. The base of a right triangle is 48 cm and its hypotenuse is 50 cm. The area of the triangle is

17. If the perimeter of an equilateral triangle is 180 cm. Then its area will be:

18. Area of the triangle is equal to:

19. If the area of an equilateral triangle is 16√3 cm², then the perimeter of the triangle is

20. The area of an equilateral triangle with side 2√3 cm is