Dilation Basics
This is the mathematical term for the process of enlarging or reducing the size of a figure.
What is a dilation?
If a point (5,4) is dilated by a scale factor of 1/4, the coordinates of the new point are (kx,ky).What are the coordinates of the dilated point?
What is (1.25,1)?
Two shapes are similar if they have the same ______ but different ______.
What are shape and size?
Identify the scale factor for the dilation A(1,2) ⇒ A'(2,4).
What is 2?
The number that indicates how much the size of a figure changes during a dilation.
What is the scale factor?
If a figure coordinates are( 3,9) and is dilated by a scale factor of 6, what are the new coordinate points?
What is (18,54)?
The ratio of the lengths of matching sides of similar shapes is called the ______.
What is the scale factor?
Identify the scale factor for the dilation A(2,6) ⇒ A'(1,3).
What is 1/2?
Dilations with a scale factor greater than 1 result in this type of transformation.
What is an enlargement?
If a shape coordinates are (3,7) is dilated by a scale factor of 1/2,
What are the coordinates of the dilated shape?
what is (1.5, 3.5)?
Two figures are _____ if they have the same shape but different sizes. This means their corresponding angles are congruent and their corresponding sides are proportional.
What is similarity?
Identify the scale factor for the dilation A(4,3) ⇒ A'(16,12).
What is 4?
Dilations with a scale factor between 0 and 1 result in this type of transformation.
What is an reduction?
If a shape coordinates are (2,5) is dilated by a scale factor of 9/2,
What are the coordinates of the dilated shape?
what is (9,22.5)?
Identify the scale factor for the dilation A(5,2) ⇒ A'(12.5,5).
What is 2.5?
Dilations preserve this geometric property of a figure.
What is angle measures?