If the length of diagonal AC of a square ABCD is 5.2 cm

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If the length of diagonal AC of a square ABCD is 5.2 cm then area of the square ABCD is ?

1. 15.12 sq.cm
2. 13.52 sq.cm
3. 12.62 sq.cm
4. 10 sq.cm

Correct Option: B

Area = 1/2 x (Diagonal)²
= (1/2) x 5.2 x 5.2 cm²
= 13.52 cm²