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Supplementary angles

 

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Supplementary angles



 
 
A pair of angle
Angle

In geometry and trigonometry, an angle is the figure formed by two Ray sharing a common endpoint, called the vertex of the angle . The magnitude of the angle is the "amount of rotation" that separates the two rays, and can be measured by considering the length of circular arc swept out when one ray is rotated about the vertex to coincide...
s is supplementary if their measures add up to 180 degree
Degree (angle)

A degree , usually denoted by ? , is a measurement of plane angle, representing 1/360 of a Turn ; one degree is equivalent to p/180 radians....
s.






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A pair of angle
Angle

In geometry and trigonometry, an angle is the figure formed by two Ray sharing a common endpoint, called the vertex of the angle . The magnitude of the angle is the "amount of rotation" that separates the two rays, and can be measured by considering the length of circular arc swept out when one ray is rotated about the vertex to coincide...
s is supplementary if their measures add up to 180 degree
Degree (angle)

A degree , usually denoted by ? , is a measurement of plane angle, representing 1/360 of a Turn ; one degree is equivalent to p/180 radians....
s. If the two supplementary angles are adjacent
Adjacent angles

In geometry, adjacent angles are angles that have a common ray coming out of the vertex going between two other rays. In other words, they are angles that are side by side, or adjacent....
 (i.e. have a common vertex and share just one side), their non-shared sides form a straight line
Line (mathematics)

In geometry, a line is a Curvature curve. When geometry is used to model the real world, lines are used to represent straight objects with negligible width and height....
. The supplement of an angle of 135 degrees is an angle of 45 degrees.

External links

  • - Interactive applet and explanation of the characteristics of supplementary angles.


  • with interactive applets that are also useful in a classroom setting. Math Open Reference