Question

If each of the sides of a square is lengthened by 4 m, the area becomes 49 m^2. What is the length of the a side of the original square?

Answer 1

Original length `= x = 7-4 = 3m`

Explanation:

Let original length of the square be ‘x’.

Lengthened side = x +4

Area of lengthened square `49^2 = (x+4)^2`

`x+4 = 7 m`

Original length `= x = 7-4 = 3m`