Question

Find the area of the square whose diagonal is 15.5 cm.​

Answer 1

Answer:

by applying Pythagoras theorem

(length)² = 120sq.cm

Answer 2

$Area of \: Square = A = ( \frac{ {d}^{2} }{2} )$

$= \frac{( {15.5)}^{2} }{2}$

$= \frac{240.25}{2}$

$= 120.125$