8D Math review after long weekend

 

Part D: Find the circumference of these circles (C = 2pr)

Radius = 13.5cm                       Diameter = 27.2cm                                                                                                                                     Radius = 4.25cm

Ans: 84.78cm                   85.40cm                                                                   26.69cm             

Find radius and diameter when circumference is given

Part D: Find the radius and diameter of these circles (C = 2pr)

Circumference = 155.68cm                                                        Circumference = 234.5cm   

Answers:  

r = 24.78cm, d = 49.56cm                                                             r = 37.34cm, d = 72,68cm