Calculate the area of the figure if the original rectangle was 5 cm long and 3 cm wide

Calculate the area of the figure if the original rectangle was 5 cm long and 3 cm wide and the width of the cut rectangle is 1 cm and 2 cm long.

To solve the problem, we first find the area of the first figure.
To do this, it is necessary to multiply its area by the width according to the following formula.
S = a * b.
Where S is the area.
a – length.
b – width.
We will receive.
S = 5 * 3 = 15 cm2.
After that, we find the area of the second cut out figure in the same way.
We will receive.
S = 2 * 1 = 2 cm2.

To find the area of the new shape, you need to subtract the area of the cut rectangle from the original area.
In this case, we get.
15-2 = 13 cm2.
Answer.
The area of the new figure is 13 cm2.