The sides of a rectangle are in the ratio of 4:5. If the width is 28 in., find the length, the perimeter, and the area of this rectangle.

Question

Find the length, perimeter, and area

Answer 1

The ratio of the sides is 4:5.  Assume (because 28=4*7) that this ratio is width:length.

 

A ratio can be reduced like a fraction.  So, 28:35 is the same as 4:5  (or 28/35 = 4/5).

 

Width = 28 in.

Length = 35 in.

 

Now fill in:

   Perimeter = Width + Length + Width + Length

   Area = Width*Length