The length of the rectangular garden is 20 m, and the width is 2 times less. 1) how many meters of mesh

The length of the rectangular garden is 20 m, and the width is 2 times less. 1) how many meters of mesh will it take to enclose it on all sides? 2) find the area of this garden.

The task
Garden length a – 20 meters
Garden width b -?, 2 times less than length
Do you need a fence net P -? meters
Plot area S -? square meters
Decision
1) Determine the width of the garden
b = a: 2 = 20: 2 = 10 meters
2) Calculate the amount of mesh for the fence (it will be equal to the perimeter of the garden)
P = (a + b) 2 = (20 + 10) 2 = 60 meters
3) Find the area of the site
S = a b = 20 10 = 200 square meters
Answer: 1) 60 meters of mesh is required; 2) the area of the garden is 200 m ^ 2.