Question

Area of 4 walls of room is 90m square. Length is 7m and breadth is 2 m find height

Answer 1

Answer:h= 36

Step-by-step explanation:

area of four wall= 2(l+b)h

90= 2(2+7)h

90=2(9) h

90-18= 2h

72= 2h

h= 72/2

h= 36

Answer 2

Answer:

5m

Step-by-step explanation:

Formula of area of 4 walls=2(l+b)×h

2(l+b)×h=90

2(7+2)×h=90

2(9)×h=90

h=90÷18

h=5m