Eportfolio 1/17/19

Central angles are subtended by an arc between those two points. They are the same as the arc length. The circumference is the distance around the circle. The formula is C = 2πr, the r represents the radius of the circle. Another way to find the circumference is to find the sum of all the given values in the circle and then multiply it by pi.  The diameter is a straight line that passes through the center, The formula is c=πd. Another way to find the diameter is to double the radius if it is known.