Question

When each side of a square is reduced by 3 metres the area becomes 81 squaremetres find the side of the orginal square

Answer 1

Answer: 144 cm square

Step-by-step explanation:

(x-3)^2 = 81

x-3 = 9

x = 12

area of original square = x^2

12 x 12 = 144 cm square