Question

A rectangular room is 6m long, 4m wide and 3.5 m high. The inner surface area of four walls is​

Answer 1

Answer:

The area of the four walls will be given by:

2( length x height) + 2(width x height)

= 2(6m x 3.5m) + 2( 4m x 3.5m)

= 2(21 m²) + 2(14m²)

=42m² + 28m²

= 70m²

The inner surface area of the four walls thus is 70m²