Find the perimeter of the rectangle if its width is 15 dm and the length is 2.3 more.

Before you can determine the perimeter of a rectangle, you need to find its length.

Since we know that it is 2.3 times larger than the width, to determine it we multiply the value of the width by the specified difference.

Will be:

15 * 2.3 = 34.5 dm.

Since the opposite sides of the rectangle are equal, and the perimeter is the sum of all sides, its value will be:

2 * (15 + 34.5) = 99 dm.

Method 2.

15 + 34.5 + 15 + 34.5 = 99 dm.

Answer: The perimeter of the rectangle is 99 decimeters.