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Class 9th Maths || Menu
  • Important
    • Sample Papers
    • Sample Paper – I
    • Sample Paper – II
    • Sample Paper – III
    • Important Formulas
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  • Number System
    • Ex. 1.1 NCERT
    • Ex. 1.2 NCERT
    • Ex 1.3 NCERT
    • Ex 1.6 NCERT
    • Examples – R.D Sharma
    • Ex. 1.2 & Examples – R.D Sharma
    • Ex. 1.4 & Examples R.D Sharma
    • Ex 1.6 R.D Sharma
    • Ex. 3.1 R.D Sharma
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  • Polynomials
    • Ex. 2.1 & Intro
    • Ex. 2.2 NCERT
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    • Ex. 2.5 NCERT
    • RS Aggarwal
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    • Ex. 4 with Examples – R D Sharma
    • Ex. 5 with Examples – R.D Sharma
    • Ex. 6 with Examples – R D Sharma
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  • Coordinate Geometry
    • Cartesian Plane
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    • RS Aggarwal
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  • Linear Equations in Two Variables
    • Ex. 4.1 NCERT
    • Ex. 4.2 NCERT
    • Ex. 4.3 & Ex 4.4 NCERT
    • R D Sharma Videos
    • RS Aggarwal
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  • Introduction to Euclid’s Geometry
    • Introduction to Euclid’s Geometry
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    • RS Aggarwal
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  • Lines and Angles
    • Ex 6.1 NCERT
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  • Triangles
    • Ex. 7.1 NCERT
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    • Ex. 7.3 & Ex.7.4 NCERT
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  • Quadrilaterals
    • Ex. 8.1 NCERT
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    • Mid-Point Theorem
    • RS Aggarwal
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  • Areas of Parallelograms and Triangles
    • Concept of Area of Region
    • Ex. 9.2 NCERT
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  • Circle’s
    • Ex. 10.1 & Intro
    • Ex.10.2 NCERT
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  • Geometric Constructions
    • Basic Constructions
    • Construction of Triangles
    • NCERT Solutions
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  • Heron’s Formula
    • Ex. 12.1 & Intro
    • Ex. 12.2 NCERT
    • R.D Sharma Videos
    • R.D Sharma Solutions
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  • Surface Areas and Volumes
    • Ex. 13.1 NCERT
    • Ex. 13.2 NCERT
    • Ex. 13.3 NCERT
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    • R D Sharma Solutions
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    • Ex. 14.2 NCERT
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    • Ex. 15.1 NCERT
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Introduction to Heron’s Formula

1. There will be total 20 MCQ in this test.
2. Please keep a pen and paper ready for rough work but keep your books away.
3. The test will consist of only objective type multiple choice questions requiring students to mouse-click their correct choice of the options against the related question number.
4. No negative marking for incorrect choice.
5. Please click on “Finish the Test” when you want to exit.
6. All the best – Happy Studying

1. A triangular park ABC has sides 120 m, 80 m and 50 m. A gardener, Dhania has to put a fence all around it and also plant grass inside. The area required and the cost of fencing it with barbed wire at the rate of Rs. 20 per metre leaving a space 3 m wide for a gate on one side will be
 
 
 
 

Question 1 of 20

2. The area of triangle, whose sides are 15 cm, 25 cm and 14 cm:
 
 
 
 

Question 2 of 20

3. The area of an equilateral triangle of side 6 cm is
 
 
 
 

Question 3 of 20

4. The perimeter of a rhombus is 146 cm. One of its diagonals is 55 cm. The length of the other diagonal and area of the rhombus are
 
 
 
 

Question 4 of 20

5. A square sheet whose perimeter is 32 cm is painted at the rate of Rs. 5 per cm2. The cost of painting is:
 
 
 
 

Question 5 of 20

6. If each side of an equilateral triangle is increased by 2 cm, then its area increases by 1177_image216 cm2. The length of its each side and its area are respectively equal to
 
 
 
 

Question 6 of 20

7. The area of quadrilateral PQRS, in which PQ = 7 cm, QR = 6 cm, RS = 12 cm, PS = 15 cm and PR = 9 cm:
 
 
 
 

Question 7 of 20

8. The base of an isosceles triangle is 10 cm and one of its equal sides is 13 cm. The area of the triangle is
 
 
 
 

Question 8 of 20

9. The lengths of a triangle are 6 cm, 8 cm and 10 cm. Then the length of perpendicular from the opposite vertex to the side whose length is 8cm is:
 
 
 
 

Question 9 of 20

10. The perimeter of an isosceles right angled triangle having an area of 200 cm2 is
 
 
 
 

Question 10 of 20

11. A carpenter had to make a triangle with sides 5, 6, 5 units. By mistake he made one with sides 5, 8, 5 units. The difference between their areas is:
 
 
 
 

Question 11 of 20

12. The area of a right triangle of height 15 m and base 20 m is
 
 
 
 

Question 12 of 20

13. The perimeter of a right triangle is 144 cm and its hypotenuse measures 65 cm. The other sides and its area are
 
 
 
 

Question 13 of 20

14. The area of an equilateral triangle of side 14 cm is
 
 
 
 

Question 14 of 20

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

Question 15 of 20

16. The area of an equilateral triangle with perimeter 18x is:
 
 
 
 

Question 16 of 20

17. The sides of a triangular plot are in the ratio of 3 : 5 : 7 and its perimeter is 300 m. Its area is
 
 
 
 

Question 17 of 20

18. The area of a right triangle with base 5 m and altitude 12 m is
 
 
 
 

Question 18 of 20

19. There is a slide in a park. One of its side walls has been painted in some colour with a message “Keep the park green and Clean”. If sides of the wall are 15m, 11 m and 6 m, the area painted in colour is________.
1167_image142
 
 
 
 

Question 19 of 20

20. The area of triangle, whose sides are 15 cm, 25 cm and 14 cm is
 
 
 
 

Question 20 of 20

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