Question

If the perimeter of the square is $48$ units . what will be the length of its diagonal?

• A. $12$
• B. $10\sqrt{2}$
• C. $12\sqrt{2}$
• D. $10$

Answer 1

Answer: (C)

$12\sqrt{2}$

If the side of triangle is $a$, then its diagonal is $a\sqrt{2}$.

Perimeter of square$=4a=48\Rightarrow a=12$

Diagonal$=a\sqrt{2}=12\sqrt{2}$