Vocabulary
A series of points that extends in two opposite directions without end.
Line
Number points needed to name a line.
Two
If A is between B and C, BA is 5, and AC is 11, what is BC?
16
Point that divides a segment with the ratio 1:1
Midpoint
Find the distance between 15 and 37
22
Points that lie on the same line.
Collinear Points
Two lines intersect at a ___________.
Point
If B is between A and Z, AZ is 20, and AB is 7.5, then BZ is _____.
12.5
A is at 4 on the number line and C is at 10. B is the midpoint. Where is B?
7
Marshall lives 2300 yards from school and 1500 yards from the pharmacy. The school, pharmacy, and his home are all collinear. What is the distance from the pharmacy to the school?
800 yards
A flat surface that contains many lines and extends without end in the directions of all the lines.
Plane
If a set of points are collinear, they must also be _________ .
coplanar
The square root of 16
4
Midpoint of the line segment with endpoints (1,-2) and (-5,4).
(-2,1)
Point O is the midpoint of line segment JY. If point J is at (-9, -1) and point O is at (8, 14). Where is point Y?
(25, 29)
What does that line spell?
Points and lines in the same plane.
Coplanar
Two planes will intersect at a __________.
Line.
The square root of 40 is between __ and __.
6 and 7
A is at (2,4) and C is at (6,10). Find B, the midpoint of AC.
(4,7)
Find the measure of line segment XZ, if line segment XY is 24 + 3x and line segment YZ is 5x + 8 and Y is the midpoint of line segment XZ.
96
Write the distance formula
Check students' answers
Three points that describe a single plane have to be _______________.
Non-collinear
RS is congruent to TV. RS is 7x-22. TV is 13in. The value of x is ___.
5
Find the distance between (2,3) and (5,7).
5
A command center learns of an enemy patrol that is located 7 miles east and 11 miles north of their position. If the command helicopter is located 1 miles east and 3 miles north of the center. What is the shortest distance the helicopter can travel to get to the enemy patrol?
10 miles