Rays and Angles SY 2015-2016 Source: Geometry (2007) by Ron Larson et al.

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Presentation transcript:

Rays and Angles SY 2015-2016 Source: Geometry (2007) by Ron Larson et al

Definition Ray: a subset of a line that contains a point and all points on one side of the line; ray AB consists of the set of points of line AB that include point A and all points of the line on the side of B

Definition Opposite Rays: two collinear rays that intersect only at their endpoints

Definition Angle: a union of two non-collinear rays intersecting only at their endpoints

Measure of an Angle

Measure of an Angle

Postulate

Solve for the unknowns:

Solve for the unknowns:

Solve for the unknowns:

Take Note!