Question

When each side of a square was increased by 3 metres the area became 400 sq m. What was the length of the side of the original square?​

Answer 1

Answer:

17m

Step-by-step explanation:

area of square 2 is 400sq.m.

we know that area of square is $x^{2}$.

therefore side of square is root of area.

therefore side of square 2 is $\sqrt{400}$ which is 20m.

now they said side of square 2 is 3m more than square 1.

therefore side of square 1 is 20-1 = 17m

Hope I Helped