Geometric Terms
an exact location in space. A point has no dimension.
Point
a flat surface that extends endlessly in all directions.
Plane
if the sum of their measures is 90°.
Two Angles are Complementary
two angles with equal measure formed by two intersecting lines.
Vertical Angles
a collection of points along a straight path that extends endlessly in both directions.
Line
an angle whose measure is 180°
Straight Angle
if the sum of their measures is 180°.
Two angles are supplementary
The endpoint is_______the first letter.
Always
a part of a line having two endpoints.
Line Segment
an angle whose measure is 90°.
Right Angle
two lines that cross.
Intersecting Lines
<25° + <65° = < 90° and are___________angles.
complementary
a part of a line having only one endpoint.
Ray
an angle whose measure is less than 90°.
Acute Angle
two lines in the same plane that do not intersect.
Parallel Lines
What shape angles always equals 180
Triangle
consists of two rays that have a common endpoint called the vertex of the angle.
Angle
an angle whose measure is more than 90° and less than 180°.
Obtuse Angle
two lines that intersect to form right angles.
Perpendicular Lines
A parallel Line cut by a transversal line creates what types of angles
corresponding angles, alternate interior angles, alternate exterior angles, same-side (consecutive) interior/exterior angles, vertical angles, and linear pairs