Chapter 12 – Heron’s Formula
3. The area of a trapezium is 475 cm^2 and the height is 19 cm. Find the lengths of its two parallel sides if one side is 4 cm greater than the other.
02
Jul
3. The area of a trapezium is 475 cm^2 and the height is 19 cm. Find the lengths of its two parallel sides if one side is 4 cm greater than the other. 3. The area of a trapezium is 475 cm^2 and the height is 19 cm. Find the lengths of its two parallel [...]
2. The perimeter of a triangle is 50 cm. One side of a triangle is 4 cm longer than the smaller side and the third side is 6 cm less than twice the smaller side. Find the area of the triangle.
02
Jul
2. The perimeter of a triangle is 50 cm. One side of a triangle is 4 cm longer than the smaller side and the third side is 6 cm less than twice the smaller side. Find the area of the triangle. 2. The perimeter of a triangle is 50 cm. One side of a triangle [...]
1. How much paper of each shade is needed to make a kite given in Fig. 12.4, in which ABCD is a square with diagonal 44 cm
02
Jul
1. How much paper of each shade is needed to make a kite given in Fig. 12.4, in which ABCD is a square with diagonal 44 cm 1. How much paper of each shade is needed to make a kite given in Fig. 12.4 in which ABCD is a square with diagonal 44 cm July [...]
10 Find the area of the trapezium PQRS with height PQ given in Fig. 12.3
02
Jul
10 Find the area of the trapezium PQRS with height PQ given in Fig. 12.3 10 Find the area of the trapezium PQRS with height PQ given in Fig. 12.3 July 2, 2021 Category: Chapter 12 - Heron's Formula , Maths , NCERT Class 9 ,
9 A rhombus shaped sheet with perimeter 40 cm and one diagonal 12 cm, is painted on both sides at the rate of Rs 5 per m^2. Find the cost of painting.
02
Jul
9 A rhombus shaped sheet with perimeter 40 cm and one diagonal 12 cm, is painted on both sides at the rate of Rs 5 per m^2. Find the cost of painting. 9 A rhombus shaped sheet with perimeter 40 cm and one diagonal 12 cm is painted on both sides at the rate of [...]
8 The sides of a quadrilateral ABCD are 6 cm, 8 cm, 12 cm and 14 cm (taken in order) respectively, and the angle between the first two sides is a right angle. Find its area
02
Jul
8 The sides of a quadrilateral ABCD are 6 cm, 8 cm, 12 cm and 14 cm (taken in order) respectively, and the angle between the first two sides is a right angle. Find its area 12 cm and 14 cm (taken in order) respectively 8 cm 8 The sides of a quadrilateral ABCD are [...]
7 The perimeter of a triangular field is 420 m and its sides are in the ratio 6 : 7 : 8. Find the area of the triangular field.
02
Jul
7 The perimeter of a triangular field is 420 m and its sides are in the ratio 6 : 7 : 8. Find the area of the triangular field. 7 The perimeter of a triangular field is 420 m and its sides are in the ratio 6 : 7 : 8. Find the area of [...]
6 A field in the form of a parallelogram has sides 60 m and 40 m and one of its diagonals is 80 m long. Find the area of the parallelogram.
02
Jul
6 A field in the form of a parallelogram has sides 60 m and 40 m and one of its diagonals is 80 m long. Find the area of the parallelogram. 6 A field in the form of a parallelogram has sides 60 m and 40 m and one of its diagonals is 80 m [...]
5 Find the area of a parallelogram given in Fig. 12.2. Also find the length of the altitude from vertex A on the side DC.
02
Jul
5 Find the area of a parallelogram given in Fig. 12.2. Also find the length of the altitude from vertex A on the side DC. 5 Find the area of a parallelogram given in Fig. 12.2. Also find the length of the altitude from vertex A on the side DC. July 2, 2021 Category: Chapter [...]
4 The perimeter of an isosceles triangle is 32 cm. The ratio of the equal side to its base is 3 : 2. Find the area of the triangle.
02
Jul
4 The perimeter of an isosceles triangle is 32 cm. The ratio of the equal side to its base is 3 : 2. Find the area of the triangle. 4 The perimeter of an isosceles triangle is 32 cm. The ratio of the equal side to its base is 3 : 2. Find the area [...]