Scale Factor
How Are They Similar?
Similarity Ideas
Do the Dilation
Transformations
Pythagorean Theorem
100
How do I find the scale factor?
"End"/"Beginning"
100
Are they similar? How do you know?
DE is Parallel to AC
Yes we know the lines are parallel
100
What's the relationship between angles in a dilation?
They are the same?
100
Dilate the figure around C by a Scale Factor of 1/2
Figure should be half as big on each side with C in same location
100
What do I need to include when describing a dilation?
The scale factor and the center point (the point you dilate around)
100
What does a triangle have to be in order to use Pythagorean Theorem?
A right triangle
200
What are both possible scale factors?
1/2 or 2
200
Write the Similarity Statement
DBE~ABC
200
What is the relationship between lines in a dilation?
They are Parallel or on top of each other
200
What's the length of A'C' after dilating by 1/2?
A'C'=2
200
How do I know which scale factor to use?
"End"/"Beginning"
"the figure it tells you to dilate is beginning"
200
What is Pythagorean Theorem
a^2+b^2=c^2
300
What are both possible scale factors?
2/3 or 3/2
300
Write the similarity statement (we know the triangles are similar)
ABC~DEF
300
Which of the following figures are Always similar?
Equilateral triangles
Isosceles triangles
Rectangles
Squares
Equilateral triangles and Squares
300
Dilate around D by scale factor 3
Sides should be 3 times as big and all parallel to originals but not touching
300
Find the sequence of transformations (Dilate, translate, rotate reflect) from ABC to DEF
Note: Include all necessary details or you will not receive the points
Dilate ABC by scale factor 2/3 around any point
Translate B to E (or A to D, or C to F)
300
What does c always represent in pythagorean theorem
The hypotenuse/ The longest side
400
Find the scale factor from figure A to figure B
4
400
Write The Similarity Statement
ABC~EFD
400
Is the following Always True, Sometimes True or Never True:
Congruent figures are Similar
Always True
400
What is the length of A'C' after dilating around D by a scale factor 3
12
400
Find the sequence of transformations (Dilate, translate, rotate reflect) from ABC to DEF
AB=10 EF=5
Note: Include all necessary details or you will not receive the points
"Dilate ABC by scale factor "1/2.
"Translate A to E"
"Rotate C to D"
400
Find the missing side on the right triangle
sqrt52= 7.21
500
What is the scale factor from DEF to ABC
18/12=3/2
500
Are they Similar?
Yes Because The missing angles are 87 and 23 so we have Angle Angle Similarity
500
Is the following Always True, Sometimes True or Never True:
Similar Figures Are Congruent
Sometimes True
500
What is the length of C'B' after dilating around D by a scale factor 2
C'B'=6
500
Find the sequence of transformations (Dilate, translate, rotate reflect) from ABC to DEF
Note: Include all necessary details or you will not receive the points
Dilate ABC by
3/2 " around any point"
"Translate A to D"
"Reflect over DF"
500
Is the following a right triangle? How do you know?
No, 20 doesn't equal 49