Vocabulary
Geometric Properties
Similarity RULES!
Logical relationships
Quick Math
100
Word starting with "D" that describes when a new image is created using a scale factor
What is a "Dilation"?
100
The RATIO between angles of similar figures.
What is a 1:1 ratio?
100
Write an expression to determine the new image length if a dilation has a scale factor of 3 and x is the length of the original.
What is 3x?
100
Effect on length after dilating using a scale factor less than 1 (k<1)
What is "it gets Smaller"?
also acceptable: What is "it shrinks"?
100
Using the angles, show how you would proves these triangles are similar.
What is 180 - (20+60)=100 so AA similarity
Also acceptable:
What is 180 - (100+60) = 20 so AA similarity
200
The word used when rewriting an If A, then B logic statement so the A and B are reversed.
What is a "Converse"?
200
The Triangle Sum Theorem states that all the angles of a triangle must add up to ________.
What is 180 degrees.?
200
The relationship between angles in similar figures.
What is congruent?
Also acceptable: What is "a 1:1 ratio"?
200
The relationship of corresponding angles between the original and the newly dilated image.
What is "Congruent"?
200
The Proportion you could set up to solve for missing side EF. Note --> This picture is NOT drawn to scale. 
What is 9/12 = 6/x
Also acceptable
What is 9/6 = 12/x
or What is 12/9 = x/6 or What is 6/9 = x/12
300
The point located half-way between a segment's two endpoints.
What is a "Midpoint"?
300
The RATIO between a triangle and a similar triangle created by connecting it's Midpoints.
What is a 2:1 ratio ( a scale factor of 1/2)
300
Solve for x
5/2 = 45/x
x = 18
300
What ORDER do you have to name the points of the corresponding vertices (i.e. corners) When writing a similarity statement.
Ex. GHI ~ ____
What is "the SAME" ?
Also acceptable: What is "Matching"?
300
Use at least 2 proportions (a/b = c/d) that could prove these two triangles are similar.
What is 4/6 = 5/7.5 ?
or What is 4/6 = 8/12?
Or What is 5/7.5=8/12?
Or any 2 of 12/8=7.5/5 or 12/8=6/4 or 6/4=7.5/5?
400
Word starting with "P" that describes the type of equation that is made of two ratios (fractions) that are equal.
What is a "Proportion"?
400
What happens to the new image when dilating an original using a scale value that is less than 1.
What is "It gets smaller"?
400
The number of angles required to prove triangles are similar.
What is 2 per triangle?
400
What the dilated length will be when using a scale factor of k=3 when the original was 4 units.
What is "TWELVE"?
400
The scale factor that takes BC --> B'C'
What is k=1/2 ?
500
Word that describes when two lines or extensions of segments will never cross or intersect.
What is "Parallel"?
500
Effect on length when dilating using a scale factor greater than 1 (k>1).
What is "it gets Larger"?
500
The GEOMETRIC (visual) relationship between corresponding lines in a dilation
What is Parallel?
500
The relationship between corresponding line segments in similar shapes.
What is "Proportional"?
also accept.
What is the scale factor?
500
A pair of ratios that proves these two triangles are NOT similar
What is "4/8 is NOT equal to 7/13"?
Also acceptable; "What is 10/19 is NOT equal to 4/8 (or 7/14)?"
Also acceptable; "What is 8/4 is not equal to 13/7 (or 19/10)?