A rectangular room is 6m long, 4.8m wide and 3.5m high. Find the inner surface area of the four walls.
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Step-by-step explanation:
Given :
Length = 6m
Breadth = 4.8m
Height = 3.5m
Find :
The area of four walls.
Solution :
Area of four walls = 2(l + b) × h
= 2(6 + 4.8) × 3.5
= 2(10.8) × 3.5
= 21.6 × 3.5
= 75.60 m².
Hence :
The area of four walls is 75.60 m².
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