Question

the area of four walls of a room is 77 m square. The length and breadth of the room are 7.5 m and 3.5 m respectively. find the height of the room​

Answer 1

Answer:

Step-by-step explanation:

L=7.5m

B=3.5my

H=?

2H (L+B)=77

2H (7.5+3.5)=77

2H=77÷11

H=7/2 m

Answer 2

Answer:

area of 4 walls = 2(l+b)×h

" =2(11)×h

77m sq. =22×h

h. = 77/22 = 7/2 =3.5m.

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Ans.) Height is 3.5 metres long.