Definitions
Bisect
Divide something into two equal parts
If point B lies between points A and C on a line segment, and AB = 7 and BC = 12, what is the length of AC?
19
If M is the midpoint of segment AB, what is the value of AM if AB= 29?
AM=14.5
Fill in the blank:
Two LINES intersect at a _______
Point
Who is Mr. Dunn's favorite football team?
EAGLES
Segment Addition Postulate
AB + BC = AC
Points D, E, and F are collinear with E between D and F. If DE = 4x - 7, EF = 2x + 3, and DF = 5x + 8, what is the value of x?
x = 12
If B is the midpoint of AC, find the value of x if AB = 6x-14 and BC = 5x
Fill in the blank:
Two PLANES intersect at a ______
LINE
Where did Mrs. Dunn go to College?
Bloomsburg University
Segment Bisector
a LINE, RAY, or SEGMENT that divides a line into 2 EQUAL parts
Given that points P, Q, and R are collinear with Q between P and R. If PQ = 3x + 5 and QR = 2x - 1, which expression represents PR?
PR = 3x+5 + 2x-1 OR PR= 5x+4
If F is the midpoint of EG, find the value of x given EG= 12x + 2 and EF= 4x+5.
x = 2
Fill in the blank:
A PLANE and a LINE intersect at a ______
Point
What is Mr. Dunn's favorite color?
Blue
Midpoint of a Segment
A POINT of a line segment that divides it into two equal segments. The halfway point of the segment.
Points LNM are collinear in that order. Segment LN = 7x-2, segment NM = x. If (total segment)LM = 10x-12, find the value of x
x=5
If R is the midpoint of WZ, find RZ given WZ= 150 and WR= 10x+5
RZ = 75 , x = 7
Draw: Lines l and h intersect in O.
draw.
2 months
Coplanar
Points that lie on the same plane. Any three points are coplanar. Unless those three points are colinear.
If C is between D and E and DC = 2x+3, CE =3x+1 and DE = 44. Find DC and CE.
DC = 19 and CE = 25
M is the midpoint of PQ. If PM = 9x+3 and MQ = 11x - 17. Find the value of x and PQ.
PQ = 186 and x = 10
Draw: Lines L and H intersect at O.
draw
What is one of Mr. Dunn's favorite shows?
The Office, Ted Lasso