The length of the rectangle is 1.2 cm longer than the width. What are the area and perimeter

The length of the rectangle is 1.2 cm longer than the width. What are the area and perimeter of the rectangle if the length is 1.6 times the width?

1. Find the length and width of this rectangle:

We denote by the unknown variable x – the width of the rectangle,

Then 1.6x is the length of the rectangle.

Let’s make the equation:

1.6x – 1.2 = x;

0.6x = 1.2;

x = 2 width,

2 * 1.6 = 3.2 length.

2. Find the perimeter of this rectangle:

2 * (2 + 3.2) = 2 * 5.2 = 10.4 centimeters.

3. Find the area of the given rectangle (product of length and width):

2 * 3.2 = 6.4 centimeters square.

Answer: The perimeter of the rectangle is 10.4 centimeters, and the area is 6.4 square centimeters.



One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.