- Created by: tash
- Created on: 11-02-10 18:04
Angles on the same arc
Angles formed from two points on the circumference are equal to other angles, in the same arc, formed from those two points.
Angle on a Tangent is 90'
Angles in a semi circle
Angles formed by drawing lines from the ends of the diameter of a circle to its circumference form a right angle. So c is a right angle.
Angle at centre is double angle at Circumference