Diagonal of a square ABCD is equal to 8 cm. Area of ABCD is equal to?
(A) 8 (B) 16
(C) 32 (D) 64
(E) None of the above
Let side of square ABCD = s
Area of square ABCD = side side
ABCD is a square which means that is right angled at B.
Therefore, (Pythagoras theorem)
Hence, the answer is (C)