Circles and Circumference
 Match the parts of the circle to their matching positionsDiameter?Radius?Chord?Center? The diameter of a circle, d, is equal to two times the radius.                                   d=2r ABIf AB = 5, what is the diameter of the circle?AB = rAB = 5r=5d= 2(r)d = 2(5)d = The diameter of a circle, d, is equal to two times the radius.                                   d=2r ABIf AB = 8, what is the diameter of the circle?d =  Circumference is the distance around a circle. Like the perimeter, but for circles.The formula for circumference is 2 times pi(3.14) timesthe radius of the circle.C = 2πrABAB = 4  inC = 2πr  inC = 2π(4)  inC = 2 (4) (3.14)  inC =   25.12  in ABFind C when AB = 25C =                   Pi already here Find the Radius, Diameter, and Circumference of each problem below.1. C = 15π2. d = 63. r = 7d =                    r =         C =                        r= C =                       d=  Find each measureif diameter AB = 16CB = CE = DF =Circumference of circle C =                           Circumference of circle D =                            ACDFEB
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