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Gravity
Key Concepts:
Terms in this set (32)
Collinear
Points that lie on the same line
Linear Pair
A pair of adjacent angles whose noncommon sides are opposite rays.
Supplementary angles
Two angles whose sum is 180 degrees
Vertical Angles
A pair of opposite congruent angles formed by intersecting lines
Congruent
Having the same size and shape
Angle bisector
a ray that divides an angle into two congruent angles
Segment bisector
a segment, ray, line, or plane that intersects a segment at its midpoint
Midpoint
A point that divides a segment into two congruent segments
parallel lines
lines in the same plane that never intersect
conditional statements
A statement that can be written in if-then form.
hypothesis
A testable prediction, often implied by a theory
An educated guess
conclusion
A summary based on evidence or facts
triangle sum theorem
The sum of the measures of the interior angles of a triangle is 180 degrees
Line segment
A part of a line with two endpoints
Line
1. A long thin mark on a surface. 2. A continuous extent of length, straight or curved, without breadth or thickness; the trace of a moving point. 3. Long, narrow mark or band.
transversal
a line that intersects two or more coplanar lines at different points
corresponding angles
Angles formed by a transversal cutting through 2 or more lines that are in the same relative position.
same side interior angles
two interior angles on the same side of the transversal
same side exterior angles
two exterior angles on the same side of the transversal
alternate interior angles
angles between 2 lines and on opposite sides of a transversal
alternate exterior angles
Angles that lie outside a pair of lines and on opposite sides of a transversal.
Right triangle
a triangle with one right angle
slope formula
slope intercept form of a line
y-intercept
The point where the graph crosses the y-axis
perpendicular lines
Lines that intersect to form right angles
adjacent angles
Two angles that share a common side and have the same vertex
coplanar
points that lie on the same plane
complementary angles
Two angles whose measures add to 90 degrees.
distance
How far it is from one point to another
ray, opposite rays
a part of a line that starts at one endpoint and extends forever
Pythagorean Theorem
In a right angled triangle: the square of the hypotenuse is equal to. the sum of the squares of the other two sides.
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