Question

Find the area and perimeter of the following figure, if the area of each small square is 1 $c{m}^2$.



[4 marks]

Answer 1

In the given figure, there are 13 small squares.

Given, that the area of 1 small square = 1 $c{m}^2$

$\because$ Area of 13 small squares = 13 $\times$ area of a small square = (13 $\times$ 1) = 13 $c{m}^2$

[2 marks]

Also, the 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+1) cm = 28 $cm$

[2 marks]