Scale Factor
Vocabulary
X =
Corresponding Sides & Angles
Vocabulary
100
What is the scale factor from the small fry to the large fry?
3
100
What is the ratio of the length in a drawing (or model) to the length on the real thing?
Scale Factor
100
If the scale factor is 4, what is the measurement of x?
24m
100
The side CB corresponds to the side ___
ZY
100
What is how much something is per one unit of something else?
Unit Rate
200
Using the scale factor, what is the value of x?
20
200
What happens when the scale factor is 1.
What is the size stays the same?
200
The value of the unknown side length x is ...
7
200
The side AB corresponds to the side _______
XY
200
What says that two ratios (or fractions) are equal?
Proportions
300
What is the Scale Factor from triangle DEF to triangle D'E'F'?
1.5cm
300
True/False
The corresponding angles of similar figures are always congruent (the same)
What is true?
300
The value of the unknown side length, ? is ...
?=20
300
Which angle corresponds with ∠X?
∠E
300
What is the reduction of the ratio 2:10,
e.g. 1:?
1:5
400
What is the Scale Factor from triangle ABC to triangle DEF?
1/2
400
True or False, when I enlarge a shape, it gets bigger
TRUE
400
The value of the unknown side length ? is ...
? = 7.2
400
∠E
400
ABC and DEF are similar. ABC has side lengths 3, 9, 10 and DEF has side lengths 12,36,40. What is the ratio from ABC to DEF?
1:0.25
500
A flagpole and a model flag pole have a scale factor of 1 in.= 4 ft. If the model pole measures 12 inches, how tall is the pole in feet?
48ft
500
True/False
Multiplying by a scale factor less than 1 causes a shape to get bigger.
What is false?
500
Use the similar triangles below to find the height of the tree.
44ft
500
XY
500
What is the ratio used to reduce PNW?
1:4