The area of the rectangle is 192 cm2 and its width is 8m. calculated the perimeter of the rectangle.

univerkov | February 5, 2021 | education

We know that the area of a rectangle is calculated by the formula:
S = a * b.

Provided that this value for such a figure is 192 cm², and its width = 8 cm, we express the length by making an equation for the formula:

8a = 192.

To find the second factor, divide the product by the first:

a = 192: 8 = 24 cm.

The perimeter is the sum of all sides. Since the rectangle has opposite dimensions equal, it corresponds to the formula:
P = 2a + 2b = 2 * 24 + 2 * 8 = 48 + 16 = 64 cm.

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