Question

The diagonal of a square is 5.4 cm. Its area is :
(a) 41.85 cm² (b) 14.58 cm² (c) 14.85 cm² (d) 15.48cm²

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Answer 1

Area of the square= (diagonal)²/2

        so, diagonal=5.4 cm

 ∴ Area of the square is= (5.4 cm)²/2

                                        =29.16 cm²/2

                                        =14.58 cm²

SO CORRECT OPTION IS (b) 14.58 cm².