The area of a square is 144 cm2. What is the length of each of its diagonals?
Answer & explanation
Correct answer: option 3
We already know that,
Area of square = (side)2
Perimeter of the square = 4 × side
We have,
The area of a square = 144 cm2.
So, a2 = 144
= a = 12
We also know that the length of the diagonal of square = \(\sqrt {2}\) side
= \(\sqrt {2}\) × (12) = 12\(\sqrt {2}\)cm