the diagonal of a square is 4 ? 2 cm . what will be the diameter of another square if their area is double that of the first square ?
d 1 = 4 ? 2 = > area = 1 / 2 d 12 = 1 / 2 * ( 4 ? 2 ) 2 = 16 cm 2 area of new square = ( 2 * 16 ) cm 2 = 32 cm 2 therefore 1 / 2 * d 22 = 32 = > d 22 = 64 = > d 2 = 8 cm answer a
sqrt(square_area(multiply(4, 2)))