You should always count the numbers you used to make sure the total matched the total number of data. In this case, there are 20 numbers, and the total is also 20.</span>
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
