Chapter 12 – Heron’s Formula
3 From a point in the interior of an equilateral triangle, perpendiculars are drawn on the three sides. The lengths of the perpendiculars are 14 cm, 10 cm and 6 cm. Find the area of the triangle.
02
Jul
3 From a point in the interior of an equilateral triangle, perpendiculars are drawn on the three sides. The lengths of the perpendiculars are 14 cm, 10 cm and 6 cm. Find the area of the triangle. 10 cm and 6 cm. Find the area of the triangle. 3 From a point in the interior [...]
2 The triangular side walls of a flyover have been used for advertisements. The sides of the walls are 13 m, 14 m and 15 m. The advertisements yield an earning of Rs 2000 per m^2 a year. A company hired one of its walls for 6 months. How much rent did it pay?
02
Jul
2 The triangular side walls of a flyover have been used for advertisements. The sides of the walls are 13 m, 14 m and 15 m. The advertisements yield an earning of Rs 2000 per m^2 a year. A company hired one of its walls for 6 months. How much rent did it pay? 14 [...]
1. Find the cost of laying grass in a triangular field of sides 50 m, 65 m and 65 m at the rate of Rs 7 per m^2.
02
Jul
1. Find the cost of laying grass in a triangular field of sides 50 m, 65 m and 65 m at the rate of Rs 7 per m^2. 1. Find the cost of laying grass in a triangular field of sides 50 m 65 m and 65 m at the rate of Rs 7 per [...]
9. In a triangle, the sides are given as 11 cm, 12 cm and 13 cm. The length of the altitude is 10.25 cm corresponding to the side having length 12 cm.
02
Jul
9. In a triangle, the sides are given as 11 cm, 12 cm and 13 cm. The length of the altitude is 10.25 cm corresponding to the side having length 12 cm. 12 cm and 13 cm. The length of the altitude is 10.25 cm corresponding to the side having length 12 cm. 9. In [...]
8. The cost of levelling the ground in the form of a triangle having the sides 51 m, 37 m and 20 m at the rate of Rs 3 per m^2 is Rs 918.
02
Jul
8. The cost of levelling the ground in the form of a triangle having the sides 51 m, 37 m and 20 m at the rate of Rs 3 per m^2 is Rs 918. 37 m and 20 m at the rate of Rs 3 per m^2 is Rs 918. 8. The cost of levelling [...]
7. The area of a regular hexagon of side ‘a’ is the sum of the areas of the five equilateral triangles with side a.
02
Jul
7. The area of a regular hexagon of side ‘a’ is the sum of the areas of the five equilateral triangles with side a. 7. The area of a regular hexagon of side ‘a’ is the sum of the areas of the five equilateral triangles with side a. July 2, 2021 Category: Chapter 12 - [...]
6. The base and the corresponding altitude of a parallelogram are 10 cm and 3.5 cm, respectively. The area of the parallelogram is 30 cm^2.
02
Jul
6. The base and the corresponding altitude of a parallelogram are 10 cm and 3.5 cm, respectively. The area of the parallelogram is 30 cm^2. 6. The base and the corresponding altitude of a parallelogram are 10 cm and 3.5 cm respectively. The area of the parallelogram is 30 cm^2. July 2, 2021 Category: Chapter [...]
5. If the side of a rhombus is 10 cm and one diagonal is 16 cm, the area of the rhombus is 96 cm^2.
02
Jul
5. If the side of a rhombus is 10 cm and one diagonal is 16 cm, the area of the rhombus is 96 cm^2. 5. If the side of a rhombus is 10 cm and one diagonal is 16 cm the area of the rhombus is 96 cm^2. July 2, 2021 Category: Chapter 12 - [...]
4. The area of the equilateral triangle is 20 root 3 cm^2 whose each side is 8 cm.
02
Jul
4. The area of the equilateral triangle is 20 root 3 cm^2 whose each side is 8 cm. 4. The area of the equilateral triangle is 20 root 3 cm^2 whose each side is 8 cm. July 2, 2021 Category: Chapter 12 - Heron's Formula , Maths , NCERT Class 9 ,
3. The area of the isosceles triangle is 5/4 root cm^2 , if the perimeter is 11 cm and the base is 5 cm.
02
Jul
3. The area of the isosceles triangle is 5/4 root cm^2 , if the perimeter is 11 cm and the base is 5 cm. 3. The area of the isosceles triangle is 5/4 root cm^2 if the perimeter is 11 cm and the base is 5 cm. July 2, 2021 Category: Chapter 12 - Heron's [...]