The length of a rectangle is three times its width its perimeter is 24 cm find its area

Area of a rectangle is 27 cm²

Given:

Perimeter of a rectangle = 24 cm

Length = 3x

Width = x

p = 2 (l + w)

24 = 2 (3x + x)

24 = 6x + 2x

24 = 8x

24/8 = x

3 = x

Width = 3 cm; Length = 3x = 3 (3) = 9 cm

Area = length * width

= 9cm * 3 cm

Area = 27 cm²