Wiki User
∙ 12y agoSuppose width = W inches.
Then length, L = W + 2.5 inches.
Area = L*W = (W + 2.5)*W which is 37.5 sq inches.
Therefore W2 + 2.5W - 37.5 = 0
Multiplying by 2, to get rid of the fraction,
2W2 + 5W - 75 = 0
(2W +15)(W - 5) = 0
So W = -73.5 or W = 5
Since W is a length, it cannot be negative, so W = 5 inches
Then L = W + 2.5 = 7.5 inches
Therefore, the perimeter is 2*(L+W) = 2*(7.5 + 5) = 2*12.5 = 25 inches.
Wiki User
∙ 12y agoThe perimeter is 60 inches
28 inches
Its length is 18 inches
28 inches
20
The length of a rectangle is 8 inches. The width of the rectangle is 4 inches. What is the perimeter of the rectangle in inches?
The perimeter is 60 inches
Length of rectangle is 5 inches and its width is 4 inches Check: 2*(5+4) = 18 inches which is its perimeter
The perimeter of a rectangle = 2 x (length + width) = 2 x (12 + 8) = 2 x 20 = 40 inches
28 inches
Its length is 18 inches
112 inches
A rectangle has two dimensions, length and width. You haven't said what the width is. The perimeter is the distance around the rectangle. Imagine going round it. You would go 42 inches, then a width, then another 42 inches, then another width. In general, the perimeter of a rectangle is twice its length plus twice its width.
10 inches
22 inches
10.4 inches
28 inches