# The length of the rectangle is 8 cm. It is 40 mm longer than the width. Find the area of the rectangle.

September 12, 2021 | education

| Determine the width of the rectangle, provided that it is 40 mm less than the length equal to 8 cm:

8 cm – 40 mm = 8 cm – 4 cm = 4 cm. Based on the fact that 1 cm = 10 mm.

The area of such a figure, the opposite sides of which are equal, is calculated by the formula:

S = a * b = 8 * 4 = 32 cm².

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