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Gravity
Geometry 1
Terms in this set (23)
Adjacent Angles
Two angles in the same plane that have a common vertex and a common side, but no interior points in common.
Betweenness of Points
Point B is between A and C if A, B, and C are collinear and the equation AB + BC = AC is true, where AB, BC, and AC are the distances between points A and B, B and C, and A and C, respectively.
Complementary Angles
Two angles with measures that, when added together, equal 90°. Each angle is called the complement of the other.
Supplementary Angles
Two angles with measures that, when added together, equal 180°. Each angle is called the supplement of the other.
Vertical angles
Angles with sides that form two pairs of opposite rays.
Col-linear Points
A set of two or more points on the same line
Co-planer Points
A set of two or more points on the same plane
Space
The set of all possible points
Bisector of a Segment
A line or segment that intersects the segment at its midpoint.
Length of a Segment
The distance between the endpoints of a segment.
Line Segment
The set of two different endpoints and all points between them.
Mid-point of a Segment
The point on a segment that divides the segment into two equal segments.
Opposite Rays
Ray BA and ray BC are opposite rays if A, B, and C are collinear and B (the endpoint of both rays) is between A and C.
Ray
A ray, AB, is the set of points beginning at point A and going infinitely in the direction of point B.
True/False: A plane needs three non-collinear points to be defined
True
How do you write a line segment?
"AB" (or whatever variable listed) with no line above
How do you know if a point is the midpoint of a line segment?
If the point "M" is in the center of the line segment "AB" and the length of AM = MB, then point "M" is your midpoint.
For the following figure, complete the statement about the points.If U lies on the same line as R and N, what terms describe the relationship the three points must have?
- Betweenness of points
- Col-linear
- Co-planar
Point O is between points G and D on line m. What is not necessarily true?
GO = OD
Point O is between points M and N on line segment MN. O is the midpoint of line segment MN if _____.
ON = OM
S, U, N are collinear. Which point satisfies the definition of betweenness if NU + US = NS.
U
S, U, N are collinear. What point is between the other two if NU = 1, SU = 2, SN = 3?
NU + US = NS.
U
Opposite rays form a _______.
Line
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