Points, Lines, and Planes
Line Segments
Distance & Midpoint
Definitions & Formulas
100
What is a point in geometry?
An exact location in space. It has no size and is named with a capital letter.
100
B is between A and C. If AB = 4 and BC = 7, find AC.
AC = 11
100
Find the distance between −2 and 5 on a number line.
7
100
What is a ray?
A part of a line that has one endpoint and extends forever in one direction.
200
What do we call points that lie on the same straight line?
Collinear points.
200
M is between L and N. LM = 9, LN = 23. Find MN.
14
200
Find the distance between A(3, 2) and B(3, 10).
8
200
What does it mean when two line Segments are congruent?
They have equal lengths
300
What is the difference between a line and a ray?
A line extends infinitely in both directions. A ray has one endpoint and extends infinitely in one direction.
300
If S is the midpoint of line Segment RT, RS = 5x + 17, and ST = 8x -31, find RS.
RS = 97
300
Solve: Find ST if S(-3, 10) and T(-2,3).
sqrt50 approx 7.07
300
What is the formula for finding midpoint on a coordinate plane?
400
How many planes are shown in the figure?
5 planes
400
If DF = 42, find DE.
DE = 29
400
Find the midpoint of (2, 4) and (8, 6).
(5, 5)
400
What is the formula for distance on a coordinate plane?
500
Name the intersection of line c and plane R.
Point K
500
In the diagram below, if JL = 10x - 2, JK = 5x - 8, and KL = 7x-12, find KL.
KL = 51
500
Given the graph below, find WV.
sqrt40
500
What is the formula for Segment Additon Postulate?
If B is between A and C, then AB + BC = AC