Question

A square is removed from the right hand corner of a square board. What is the area of the remaining board in square feet?

Answer 1

The area of the remaining board in square feet is:

108 square feet.

Explanation:

The remaining area of board=

Area of the whole board-Area of square which is removed.

i.e.

Area of remaining board= Area of square of side length 12 feet-Area of square with side length 6 feet.

We know that the area of square with side length s units is given by: s² square units

Hence, we get:

Area of remaining board= (12)²-(6)²

i.e.

Area of remaining board= 144-36

i.e.

Area of remaining board= 108 square feet.