Question

Find the area and perimeter of the following figure, if area of small square is 1 sq cm.

Answer 1

In the given figure, there are 13 small squares

Given, area of 1 small square = 1 sq cm

∴ Area of 13 small squares = 13 × Area of a small square

= 13 × 1 sq cm

= 13 sq cm

Also, side of a small square = 1 cm

Now, perimeter of the given figure = Sum of all its sides

= (1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1) cm

= 27 cm