5. Circle C=∏d C= Circumference R=Radius D=Diameter ∏=3.14 D R
6. Example of Circle Example#1 C=3.14*15cm C=47.1 cm Emaple#2 C=3.14*20 cm C=62.8 cm 15cm 10cm
7. Perimeter of a Hexagon, Pentagon, and Decagon P=6s P=10s P=5s
8. Real Life Problems Cody is building a house. The length of the house is 10ft and the width of the house is 15ft.What is the Perimeter? 15ft P=15+15+10+10 P=30+20 P=50ft 10ft 10ft 15ft