Circles
Parts of a Circle Center The diameter is the distance across the circle through the center The radius is the distance to the center point
Circumference
Finding the Circumference 1)Determine whether you are given the diameter or the radius of the circle -Diameter is the entire length across the circle -Radius is only to the center point 2)Apply the correct formula and simplify -Calculate using π last using 3.14 as π -Round to the nearest tenth and use units given Find the circumference
Example Find the circumference
Guided Practice Find the circumference
Finding the Area Find the area
Example Find the area
Guided Practice Find the area