Find the area and perimeter of a rectangle whose length is 18 cm and it is 5 cm more wide.
| July 18, 2021 | education
1) Find the width of the rectangle:
18 – 5 = 13 (cm).
2) Find the perimeter of the rectangle. We will use the formula to calculate the perimeter of a rectangle: P = (a + b) x 2, where P is the perimeter of the rectangle, a is the length, and b is the width.
P = (18 + 13) x 2 = 31 x 2 = 62 (cm).
3) Find the area of the rectangle. We will use the formula for calculating the area of a rectangle: S = a x b, where S is the area of the rectangle, a is the length, and b is the width.
S = 18 x 13 = 234 (cm2).
Answer: the perimeter of the rectangle is 62 cm; the area of the rectangle is 234 cm2.
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