In this equation the angle C is between the two adjacent sides ab Since the lengths are equal we can call them both X Hence 254= 1/2 (x)(x) sin53 By simplifying 508 = (x^2) sin53 So therefore x is the square root of 508 divided by sin53 which means the length of the sides is 35.8km to 3 significant figures
Assuming the length is y and the width is x Perimeter = y + y + x + x = 2y +2x = 2 (y + x) if the is 8 and the perimeter is 108 108 = 2 (y +8) 108/2 = y+8 54 = y +8 54 - 8 = y 46 = y
