The area of 4 wall of a room is 168m².the breadth and height of the room are 10m and 4m .find the length of the room
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area of room=2×h(l+b)
let breadth =b
means 168sq.m=2×4 (10+b)
so,168=8 (10+b)
168=80+8b
168-80=8b
so breadth =88/8
=11m
let breadth =b
means 168sq.m=2×4 (10+b)
so,168=8 (10+b)
168=80+8b
168-80=8b
so breadth =88/8
=11m
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