Question

The length of each side of a square is 'a'. If the length of each side of the square is doubled, find the new area.

• A. $a^2$
• B. $a^4$
• C. 4$a^2$
• D. 4$a^4$

Answer 1

The correct option is C

4$a^2$

Given that

The length of each side of a square = 'a'

Initial area = a $\times$ a = $a^2$

The length of each side of the square when each side is doubled = '2a'
Final area = 2a x 2a = 4$a^2$