Question

A rectangular room is 6m long, 4.8m wide and 3.5m high. Find the inner surface area of the four walls.

Answer 1

Answer:

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Step-by-step explanation:

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Answer 2

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.