The area of the rectangle is 56 cm2. What is the perimeter of this rectangle if one of the sides is 8 cm?
| February 10, 2021 | education
1. Let’s calculate the other side of the rectangle using the following formula: a = S / b, where b is the width, S is the area, a is the length:
a = 56/8 = 7 cm.
2. Find the perimeter of the rectangle by the formula P = 2a + 2b:
P = 2 * 7 + 2 * 8 = 14 + 16 = 30 cm.
Answer: The perimeter of the rectangle is 30 cm.
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