The length of the rectangle is 10 cm, and the width is 2 times less.

univerkov | August 10, 2021 | education

The length of the rectangle is 10 cm, and the width is 2 times less. Each side was increased by 5 cm. What is the perimeter of the new rectangle?

The length of the rectangle is 10 cm, and the width is 2 times less, which means that the width of this rectangle is 5 cm.
1) 10: 2 = 5 (cm) the width of the old rectangle.

The length is 10 cm and the width is 5 cm, and all sides are increased by 5 cm, which means they have become equal:
2) 10 + 5 = 15 (cm) the length of the new rectangle.
3) 5 + 5 = 10 (cm) width of the new rectangle.

The perimeter of the rectangle is calculated using the formula:
P = 2 * (a + b) where P is the perimeter, a is the length, b is the width.
4) 2 * (15 + 10) = 2 * 25 = 50 (cm) perimeter of the new rectangle.

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