Scale factor bro
S(6,9)-->A(2,3) What is the scale factor?
1/3
A transformation that changes the size but not the shape of a geometric figure is?
A dilation
Preimage: (2,2) Image (5,5). What is the scale factor?
2.5
Does a dilation of 5/3 shrink or enlarge the figure
Enlarge
K,L,M,N is dilated to a scale factor of 2 K(-4,1) , K'(_,_)
(-8,2)
The point of dilation is called
The center of dilation
Preimage: (7,8) Image: (56,64)
8
Angle B is 72 degrees after a dilation of 1/2 what is the measure of Angle B
72
What is a dilation to make a shape bigger? (Hint: word start with the letter e)
enlargement or expand
Describes how much larger or smaller the image of a dilation than the pre image?
The scale factor
Preimage: (6,3) Image: (2,1)
0.3 or 1/3
what is the preserved in dilations
angle measurments
What is a number called when multiplied by a dilation
a scale factor
True or False: dilation is how large or small an image is after it is enlarged or reduced?
True
Preimage: (46,37) Image: (23,18.5)
0.5
what is the scale factor if the pre-image and image congruent?
scale factor is 1
a transformation in which a figure and its image are similar
dilation
A dilation is a ______ that changes the _____ but not the shape of a geometric figure.
Transformation and Size
Preimage: (53.7,35.8) Image: (161.1,107.4)
3
when in real life are dilations used
in ads,buildings,blueprints