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Cards In This Set
| Front | Back |
|
Radius
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 The center of a circle to the outside (half of the diameter) |
|
Diameter
|
 A straight line across the center of a circle |
|
Circumference
|
 The distance around a circle (outside) |
|
Acute Angle
|
 An angle less than 90 degrees |
|
Obtuse Angle
|
 An angle more than 90 degrees, less than 180 degrees |
|
Straight Angle
|
 An angle that is 180 degrees (straight line) |
|
Right Angle
|
 A Square angle, it is exactly 90 degrees |
|
270 degrees
|
 3/4 of a circle |
|
360 degrees
|
 The number of degrees in a complete circle |
