What's the Scale Factor?
Vocabulary
X =
Which is the Scaled Copy?
Apply It!
100
The scale factor from triangle DEF to triangle D`E`F`is ...
What is 1.5?
100
"dilation"
to shrink or enlarge a figure
100
The value of the unknown side length x is ...
What is x = 2.5?
100
A triangle has the side lengths of 2, 4, 7. Of the following, which side lengths below would create a scaled copy...
1, 2, 3 1.5, 3, 5.25 2.5, 5, 8.5
What is 1.5, 3, 5.25?
100
A map has a scale of 2 cm = 15 miles. A trip will be 7 cm on the map, the actual distance will be ...
What is 52.5 miles?
200
The scale factor from triangle NQB to triangle N`Q`B` is...
What is 1.25?
200
"scale factor"
a number by which the size of any geometrical figure or shape can be multiplied
200
The value of the unknown side length x is ...
What is x = 7?
200
A triangle has the side lengths of 8, 9, 15. Of the following, which side lengths below would create a scaled copy...
16, 18, 25 16, 15, 30 16, 18, 30
What is 6, 18, 30?
200
A blueprint has a scale of 2 cm = 6 feet. A house is 30 feet wide, the blueprint will be this distance in centimeters ...
What is 10 cm?
300
The scale factor from triangle NPW to triangle N`P`W`is ...
What is 1/4?
300
"preimage"
the original figure, before performing a transformation to become the "image"
300
The value of the unknown side length ? is ...
What is ? = 20?
300
A triangle has the side lengths of 4, 5, 6. Of the following, which side lengths below would create a scaled copy...
1, 1.25, 7.5 5, 6.25, 7.5 2, 2.5, 3.25
What is 5, 6.25, 7.5?
300
The scale of a rectangle is 9 inches wide and 11 inches long. If the actual width is 36, then the actual area will be ...
What is 1,584 sq. in?
400
The scale factor from quadrilateral ABCD to quadrilateral A`B`C`D` is ...
What is 2?
400
"proportion"
two equivalent fractions
400
The value of the unknown side length ? is ...
What is ? = 7.2?
400
A triangle has the side lengths of 8, 12, 22. Of the following, which side lengths below would create a scaled copy...
4, 6, 11 6, 9, 16 12, 17, 30
What is 4, 6, 11?
400
A rectangle is drawn below on the grid. If a scale factor of 1/2 is applied, the perimeter of the copy is ....
What is 9 units?