Angles

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Definition and properties of the exterior angles of a transversal

Definition of a straight angle. An angle that exactly 180 degrees - a straight line.

Definition of an right angle (one whose measure is exactly 90 degrees).

Definition of a reflex angle (one whose measure is greater than 180 degrees but less than 360 degrees).

Definition of an obtuse angle. An angle between (but not including) 90deg and 180 deg;

Defines what is meant by 'interior of an angle'

Included definition: Angle made by two lines with a common vertex.

Definition of a full angle. An angle whose measure is exactly 360°.

Definition and properties of complementary angles - two angles that add to 90 degrees

Use your knowledge of vertical angles and supplementary angles to find the measurements for all angles. Answers included.

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