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Parts of a Circle
More Parts of a Circle
Radius/diameter
More definitions
Triangles
100
An angle whose vertex is at the center
What is a central angle?
100
Chord that contains the center of a circle.
What is a diameter?
100
Radius: 7 What is the diameter
What is 14
100
A part of a circle
What is an arc?
100

Scalene 

No sides are equal 

200
set of all points that are the same distance from a center point
What is a circle?
200
Half of the diameter
What is a radius?
200
Radius of 20 What is the diameter
What is 40
200
A 180 degree arc
What is a semicircle?
200

Isosceles Triangle 

Two angles and two sides are equal. 

300
A segment whose endpoints are on a circle
What is a chord?
300
The angle that has it vertex on the circle.
Inscribed angle
300
How do you figure out the diameter if you know the radius?
What is multiply the radius by 2.
300
Part of a circle measuring more than 180
What is a major arc?
300

Angles in a triangle add up to 

360

400
A line, segment or ray that intersects the circle in exactly one point
What is a tangent?
400
Half the diameter
What is radius?
400
How do you figure out the radius if you know the diameter?
What is divide the diameter by 2.
400
Part of a circle measuring less than 180 degrees.
What is minor arc?
400

Bonus points

100

500
A line that intersects a circle in 2 points.
What is a secant?
500
Distance around the circle is called
Circumference
500
Diameter of 50. What is the radius
What is 25?
500
The inscribed angle is 90. What is the central angle?
180
500

An arc

Part of the circumference