Question

5. If the perimeter of a room is 18m and its lateral surface area is 63 m², then the height of the room is
(a) 3.5 m
(b) 4.5 m
(c) 6 m
(d) 7 m​

Answer 1

Step-by-step explanation:

perimeter= 2(l+b)= 18m

lateral surface area= 2(l+b)•h

> 18•h = 63

h = 63/18 = 3.5m

Answer 2

Answer:

Perimeter= 2(l+b)=18m

lateral surface area= 2(l+b).h

18hight=63

H=63/18= 3.5 answer