The width of a rectangle is 6cm less than its length if a parimrter is 80 cm then its length and area are respectively?

Step-by-step explanation:

Let the length be x cm

Width = x - 6 cm

Perimeter = 80 cm

2 * (length + width ) = 80

2 ( x + x - 6 ) = 80

2x - 6 = 80/2

2x - 6 = 40

2x = 40 +6

2x = 46

x = 46/2

x = 23 cm

Length = 23 cm

Width = x - 6 = 23 - 6 = 17 cm

Area = length * width = 23 * 17 = 391 sq.cm

77

step-by-step explanation:

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