Question

One side of a square is increased by 3m and other side is reduce by 3m .the perimeter of rectangle founded is 36m find side of square

Answer 1

Let the side of the SQUARE be x meters

so,

new length formed when 3 m increased = x + 3 meters

new breadth formed when 3 m decreased = x - 3 meters

Now, perimeter of new rectangle formed will be

Perimeter = 2 (l + b)

36 = 2 × [(x + 3) + (x - 3)]

36 = 2 × [2x]

36 = 4x

9    = x

so, the side of the square is 9