Question

14. The length and breadth of a hall is 20 m and 16m respectively. The sum of the
areas of roof and floor is equal to the area of the four walls of the hall. Find the
height of the hall​

Answer 1

Answer:

Step-by-step explanation:

area of four walls = 2(l+b).h

area of roof and floor = lb + lb = 2 lb

a/c to question ,

2(l+b).h = 2lb

(l+b)h = lb

(20+16).h = 20×16

36h = 320

h = 320/36 =80/9 = 8.89m