Find the perimeter of the rectangle if its area is 32 cm, and one side is 4 cm.
| April 18, 2021 | education
A rectangle is a rectangle with equal opposite sides and right angles.
Its area corresponds to the formula: S = a * b, we find the unknown side, provided that the area is 32 cm², and the side is 4 cm:
a = S: b = 32: 4 = 8 cm.
The perimeter of such a figure is calculated by the formula:
P = 2a + 2b = 2 * 8 + 2 * 4 = 16 + 8 = 24 cm.
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