Find the perimeter of a rectangle if one of its sides is 240m and the other is three times smaller.

We are given a rectangle and one of its sides is known, it is equal to 240 m, and it is known that the second is three times smaller than the first.

Let’s find the length of the second side of the rectangle.

240 m: 3 = 80 m length of the second side of the rectangle.

We can now find the perimeter of the rectangle. Let’s remember the formula for finding it.

Perimeter in mathematics is the sum of the lengths of all sides of a geometric figure.

For a rectangle, use the formula: P = 2 (a + b).

Substitute and calculate: P = 2 (240 + 80) = 2 * 320 = 640 m.