The formula for determining the perimeter of a rectangle is expressed as
Perimeter = 2(L + W)
She placed 56 feet of fencing around her garden. This means that the perimeter of the garden is 56 feet. If the length of the rectangular garden is 20 feet, i means that
2(20 + W) = 56
Dividing through by 2, it becomes
20 + W = 28
W = 28 - 20
W = 8 feet
The formula for determining the area of a rectangle is expressed as
Consider this option: 1. formula is: S=0.5*d₁*d₂, where d₁;d₂ - the diagonals of the rhombus. 2. substituting the values into the formula: S=0.5*21*32=336 m².