Question

The perimeter of a rectangle is 20 centimeters. The length is 6 centimeters. What is the area of the rectangle?

Answer 1

2x + 2y = 20
2(6) + 2y = 20
12 + 2y = 20
2y = 8
y = 4
width = 4

Area = 6 × 4
= 24 cm

Answer 2

The area of the rectangle based on the perimeter given will be 24cm².

How to calculate the rectangle?

Firstly, we need to calculate the width. This will be:

= 2x + 2y = 20

2(6) + 2y = 20

12 + 2y = 20

2y = 20 - 12

2y = 8

Width = 8/2 = 4

The area of a rectangle is:

= length × width

= 6 × 4

= 24cm²

Learn more about rectangles on:

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