What is the area of square with an diagonal of `sqrt(2)`?

What is the area of a square with diagonal of 6?

Find the area of square whose diagonal.is 5sqrt2 cm

What is the diagonal of a square with an area of 25?

Prove that the area of the square drawn on the diagonal of a square is twice the area of the given square.

What is the area of a square whose diagonal measures 4 cm?

What is the area of a square whose diagonal measures 4 cm?

Find the area and the perimeter of a square with diagonal 24 cm. [Take sqrt(2)=1.41 ].