Question

A figure can be covered by 28 unit squares,without any gaps or overlaps.what is the area of the figure?

Answer 1

Remember that the area of a square is just one of its sides squared. $A=s^2$
where 
$A$ is the area of the square 
$s$ is one of the sides of the square

Unit square is a square whose sides have length 1, so lets use our formula to find the volume of one unit square:
$A=s^2$
$A=1^2$
$A=1$
We now know that each one of the squares has area 1 unit squared. Since there are 28 unit square in our figure, we are going to multiply the area of a unit square by 28 to find the area of our figure:
Area of the figure=$28(1)=28$ units squared 

We can conclude that the area of the figure is 28 units squared.