Question

Find area of square if its side is decreased by 2 times

Answer 1

Let the present side of square is x
Then area = x²
If x is decreased by 2
(x-2)² = x² + 4 - 4x
The area after the side is decreased by 2
= x²+4-4x

Answer 2

When the side of a square is increased by two times, then its area will increase by eight times.

Step-by-step explanation:

Let the side of a square be $x$ units.

Then its area is $x^{2}$ square units.

When the length of its side is increased by two times, the length becomes $(x+2x)=3x$ units.

So, the area is $(3x)^{2}=9x^{2}$ square units.

Thus the increase in square units is

$\quad 9x^{2}-x^{2}=8x^{2}$

Correct question. Find the area of a square if its side is increased by 2 times.

However the same can be solved if the length of its side is decreased by 2, in place of two times.