Question

What is the total area acquired by the houses altogether?

Answer 1

There are 4 houses.
House 1 covers 4 unit cm.
House 2 covers 6 unit cm.
House 3 covers 4 unit cm.
House 4 covers 4 unit cm.

In total, all the houses cover, 4 + 6 + 4 + 4 = 18 unit cm.

Area of one unit square = 1 cm × 1 cm
= 1 sq. cm
= 20 m× 20 m
= 400 sq. m

There are total 18 unit cm for all the houses altogether,
Area of all the houses = 18 × 400
= 7200 sq. m