Degrees in a circle.
What is 360?
A line that only touches the circle at one point.
What is a Tangent?
A line that goes from one side of a circle to the other side of a circle.
What is a Chord?
The angle formed by joining the endpoints of an arc to the center of the circle.
What is a central angle?
The number of tangents to a circle you can possibly draw from a single point outside the circle.
What is two?
The degrees of the arc that connects the diameter of a circle.
What is a semicircle
1800?
What is 5? Tangent segments that meet at an external endpoint are congruent.
The radius does this to a chord when they are perpendicular.
What is bisect?
The angle formed by joining the endpoints of an arc to a point on the circle.
What is an Inscribed Angle?
What is x=17.55? chords that meet at a common external endpoint - external segment x whole segment = external segment x whole segment
Arc that measures more than 180 degrees
What is a major arc?
Find Angle B
60o? Tangent segments that meet at an external endpoint form an angle that is 1/2 the difference of major and minor arc.
.
43o? When chord intersect they form an angle that is 1/2 the sum of the intercepted arcs.
property of inscribed quadrilaterals
What is the opposite angles are supplementary?
If .
What is x=10.58? Tangent squared = external segment times whole segment
What is the center and radius of this circle
(x-4)2+(y+2)2=36
What is (4,-2) and 6?
Your favorite math teacher
Ms. Nancy