Parts of a Circle
More Parts of a Circle
Radius/diameter
radius/diameter
Polygons
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

Diameter = 10  What is the radius?

5

100

A quadrilateral with four congruent sides, four right angles and two sets of parallel sides

What is a square?

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

Diameter = 17. What is the radius?

8.5

200

A shape with six sides?

What is a hexagon?

300

a line segment that connects to outside points of 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

Radius = 12. What is the diameter?

24

300

The quadrilateral with exactly one set of parallel sides?

What is a trapezoid?

400
The perimeter of a circle

What is circumference?

400

The middle of the circle

What is the center?

400
How do you figure out the radius if you know the diameter?
What is divide the diameter by 2.
400

Radius = 17. What is the diameter?

34

400

A shape with twelve sides?

What is a dodecagon?

500

A special chord that passes through the center of a circle

What is a diameter?

500
Distance around the circle is called
Circumference
500
Diameter of 50. What is the radius
What is 25?
500

Radius = 2.8. What is the diameter?

5.6

500

A quadrilateral that has two sets of parallel sides

What is a parallelogram?

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