General Circles
Tangent Properties
Chord Properties
Angle Properties
Problems
100
To cut in half.
What is "to bisect"?
100
A line that only touches the circle at one point.
What is a Tangent?
100
A line that goes from one side of a circle to the other side of a circle.
What is a Chord?
100
The angle formed by joining the endpoints of an arc to the center of the circle.
What is a central angle?
100
See doc 1.
What is 140 degrees?
200
The arc that intercepted by the diameter of a circle.
What is a semicircle?
200
The point where a tangent touches a circle.
What is a Point of Tangency?
200
The radius does this to a chord when they are perpendicular.
What is bisect?
200
The angle formed by joining the endpoints of an arc to a point on the circle.
What is an Inscribed Angle?
200
See doc 2.
What is 25?
300
A straight line that goes from one side of the circle to the other side of the circle through the center.
What is a Diameter?
300
A tangent and a radius of a circle make a ninety degree angle at the point of tangency.
What is the Tangent Theorem?
300
The size of the angle between a radius and a chord, when the chord is bisected.
What is ninety degrees?
300
These types of angles are equal when they intercept the same arc.
What are Inscribed Angles?
300
See doc 3.
What is 99 degrees?
400
A line that intersects a circle at two points.
What is a secant?
400
Four tangents to a circle make this figure when they are ninety degrees to teach other.
What is a square?
400
A chord that is ninety degrees to a tangent is also known as this.
What is a diameter?
400
This angle is twice the inscribed angle when intercepted by the same arc.
What is a Central Angle?
400
See doc 4.
What is 8?
500
Coplanar circles with the same center.
What is concentric circles?
500
In a triangle, the line that connects the tangent and the radius of a circle.
What is a hypotenuse?
500
If you were to draw two different chords and bisect them, the two bisectors would intersect at this point.
What is the center (origin) of the circle?
500
All inscribed angles intercepted by a semicircle are this.
What are Right Angles?
500
See doc 5.
What is 78?
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