Question

the length of a rectangle of perimeter 64 cm is 5/3 rd of its breath. find the area of rectangle.​

Answer 1

let the bredth of the rectangle be 3x

=> length = 5x

perimeter = 64 cm

=> 2(3x+5x) = 64 cm

=> x = 4cm

=> area =

5x× 3x

= 5×4 ×3×4

= 240 cm²