The students of a school staged a parade. The triangular banner each student carried had sides 20 cm, 20 cm and 24 cm. The colour required to paint one such banner is at the rate of Rs 1 per 4 cm^2. Find the cost of painting one banner (in Rs).

Question

Accepted Answer

48. s = 20+20+24/2 = 32. Area = √32 · 12 · 12 · 8 = √36864 = 192 cm^2. Cost = 192/4 = Rs 48.

The students of a school staged a parade. The triangular banner each student carried had sides 20 cm, 20 cm and 24 cm.
The colour required to paint one such banner is at the rate of Rs 1 per $4 cm^{2}$ .
Find the cost of painting one banner (in Rs).

Step-by-Step Solution

Master this chapter in 30 minutes a day.

More Class 9 Area of a Triangle by Heron's Formula practice

The students of a school staged a parade. The triangular banner each student carried had sides 20 cm, 20 cm and 24 cm.The colour required to paint one such banner is at the rate of Rs 1 per 4cm2.Find the cost of painting one banner (in Rs).

Step-by-Step Solution

Master this chapter in 30 minutes a day.

More Class 9 Area of a Triangle by Heron's Formula practice

The students of a school staged a parade. The triangular banner each student carried had sides 20 cm, 20 cm and 24 cm.
The colour required to paint one such banner is at the rate of Rs 1 per $4 cm^{2}$ .
Find the cost of painting one banner (in Rs).