Dilation Notes
Important Prior Vocab
Line:
Line Segment:
Ray:
Dilation with center not contained by PQ
Dilation with center co-linear with PQ
Dilation with center that is contained by PQ
1.
3.
.
Select all the statements that are true
a. m<A = m<A’
b. m<B = m<D’
c. OB is twice the distance of OB’
d. C’D = CD * 2
e. CD = C’D’ * 2
4.
3.
Dilate line segment AB by a factor of 3 about point P.
Are the lines parallel or on the same line?
4. Dilate line segment AB by a factor of ½ about point P.
Are the lines parallel or on the same line?
Name _____________
Date ______________
Bell Ringer
1.
2.
3.
4.
Explain your thinking
___________________________________________________________________
___________________________________________________________________
___________________________________________________________________
Find someone at your table that came up with a different answer
___________________________________________________________________
___________________________________________________________________
___________________________________________________________________
Name _____________
Date ______________
Bell Ringer
What scale factor was used to dilate rectangle WXYZ to rectangle W’X’Y’Z’?
What scale factor was used to dilate triangle ABC to triangle A’B’C’?
Note: the new image is smaller than the original so the scale factor should be less than 1.
Create Your Own
Dilation Problem
Creator ________________
Solver _________________
Problem Statement:
Carry out a dilation of _________________ about the center ______ by a scale factor of
__________
Create Your Own
Dilation Problem pt. 2
Creator ________________
Solver _________________
Problem Statement:
Carry out a dilation of _________________ about the center ______ by a scale factor of
__________