Question

The length and breadth of a hall are 20 meters and 15 meters respectively. Find the area of the four walls of the hall if the height of the hall is 10 meters​

Answer 1

the area of four wall is 300metre2

Answer 2

Answer:

length = 20m

breadth= 15m

so we use lateral surface area = 2(L+B) H

area of hall = 2(20+15)10

2×35×10 = 700m^2 ans