PRESENTATION OUTLINE
Circle
- the set of all points in a plane that are the same distance from a given point called the center.
Semi circle
- half of a circle. The formula for the area of a semicircle is A=1/2 r2.
Circumference
- the distance around a circle.
Area of circle
- area of the region enclosed by the circle.
Diameter
- the he distance across a circle through its center.
Radius
- the distance from the center of a circle to any point on the circle.
Chord
- a straight line that connects 2 points on a curve.
Center of a circle
- the point from which all points on circle are the same distance.
Pi
- the ratio of the circumference of a circle to its diameter. The greek letter represent this number. The value of Pi is 3.1415926..Approximation
For pi are 3.14 and 22/7.
Formula
- an equation that shows the relationship among certain quantities.
