Scale Factor
Vocabulary
X =
100
What is the scale factor from the small fry to the large fry?
3
100
Will a scale factor less than one make a shape bigger or smaller?
Smaller
100
If the scale factor is 4, what is the measurement of x?
24m
200
Using the scale factor, what is the value of x?
20
200
An accurate scale drawing will have the same _________ & ________, the only thing that changes is the _____________.
same: shape and angles
changes: size
200
The value of the unknown side length x is ...
7
300
What is the Scale Factor from triangle DEF to triangle D'E'F'?
1.5cm
300
What operation do you use to go from the OG shape to the copy?
Multiplication
300
Coral drew a stick figure 3 in tall on her paper. June drew one with a SF of 3in. How tall was June's stick figure?
9 in tall
400
What is the Scale Factor from triangle ABC to triangle DEF?
1/2
400
True or False: You HAVE TO multiply by the SAME scale factor in order for it to be a scale copy.
TRUE
400
Dean drew a tomato 4 in round. Merrick drew a tomato 1 in round. What scale factor was used to go from Dean to Merrick's tomato drawing?
1/4 in
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
To find the scale factor, what fraction (with words) do you use?
Copy/OG
500
Brook drew a heart 6 in tall. Austin used a scale factor of 1.5 to draw his heart. How tall was Austin's heart?
9 in tall