The rectangle is 12.6 cm long and half the width. How much is the area of the rectangle?

It is known from the condition that the length of the rectangle is 12.6 cm, and the width is three times less. In order to find the area of the rectangle, recall and apply the formula for finding the area of the rectangle.

S = a * b, where a and b are the length and width of the rectangle.

So, in order to find the area of a rectangle, we need to know the width of the rectangle.

We know that the width is 3 times less than the length of the rectangle:

b = 12.6: 3 = 4.2 cm width of the rectangle.

It remains to find the area:

S = 12.6 * 4.2 = 52.92 cm2.