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A 90 degree angle
What is right angle
What is a point
A location in any space represented by a dot
A set of straight lines passing through one point
what is acute
An angle less then 90 degrees
what is an obtuse angle
An angle greater than 90 degrees
What is an angle
The space between to intersecting lines at or close to the point they meet at
what is a straight angle
An angle that adds up to 180 degrees
What is a line
An infinitely thin infinitely, long collection of points extending in two opposite directions
What is a collinear point
All the points are on the same straight line
Adjacent angles
angles with a common side and a common vertex
What is a supplementary angle
either of two angles whose sum is 180°
What is a line segment
a part of a line that is bounded by two endpoints
What is an angle bisector
the division of something into two equal or congruent parts by line
Vertical angles
each of the pairs of opposite angles made two interesting lines
Linear pair
a pair of adjacent angles formed when two lines intersect
Complementary angles
angles whose sum is 90 degrees
Midpoint formula
The formula to find the middle between two points
A flat surface on which a straight line joining by any two points
what is coplanar points
On the same plane
Distance formula
the formula to find the distance between two points on a coordinate plane
What is a midpoint
The exact middle point
Congruent
Identical in form