Question

Solve it :-
Find the area of a square whose side is $20.5$cm.

• A. $300.25c{m}^2$
• B. $478.67c{m}^2$
• C. $420.25c{m}^2$
• D. $400.25c{m}^2$

Answer 1

Answer: (C)

$420.25c{m}^2$

Consider the following question.

Area of square is-

$A=a^2$

$=20.5\times 20.5$

$=420.25c{m}^2$

Hence, this is the required answer.