Arectangle has perimeter of 20, if the length and width are halved. what is the new perimeter ?

10

Step-by-step explanation:

The perimeter will also be halved:  (1/2)(20) = 10.

Example:  a rectangle of length 14 ft and width 8 ft has perimeter P = 2(14 ft) + 2(8 ft), or 28 ft + 16 ft = 44 ft.

If we halve the length and width, we get 7 ft and 4 ft, and the P is

2(7 ft) + 2(4 ft) = 14 ft + 8 ft = 22 ft, which is half of the original perimeter 44.

answer: 5

step-by-step explanation: