The width of the rectangle is 5m, its length is 2 times its width. What is the perimeter of the rectangle? What is its area?

A rectangle is a rectangle with opposite sides parallel and equal in pairs. The side of the rectangle that is longer is called the length and is denoted by the Latin letter a, and the side that is shorter is called the width and is denoted by the Latin letter b.
The perimeter of the rectangle is:
P = a + b + a + b = 2 * a + 2 * b = 2 * (a + b).
The area of ​​the rectangle is:
S = a * b.
By condition, the width is 5 m, and the length is 2 times greater, then:
a = 2 * b = 2 * 5 = 10 (m).
The perimeter of the rectangle is:
P = 2 * (10 + 5) = 2 * 15 = 30 (m).
The area of ​​the rectangle is:
S = 10 * 5 = 50 (m²).
Answer: P = 30 m, S = 50 m².