Vocabulary
Scale Drawings
Scale Factors
Scaled Copies
Random
100
Fill in the blank.
Two ratios are equivalent if you can _______ each of the values in the first ratio by the same number to get the values in the second ratio
Multiply
100
The actual distance between Atlanta and Birmingham is 180 miles. How far apart would the two cities be on a map that uses a scale of 5 in:60 mi?
15 inches
100
The scale factor between the two scaled copies below
2
100
The length of the left side on the bottom polygon (they are scaled copies)
What is 3?
100
When scaling a shape, what happens to the angles?
They stay the same
200
Use the following word bank: Scale, scale drawing, scale factor, scaled copy.
The number we multiply all the lengths in the original figure by to create a scaled copy
scale factor
200
An architect used a scale of 2 cm:48 ft to build a model of a playground. If the length of the model is 30 cm, what is the actual size of the playground?
720 feet
200
The scale factor between the following two polygons
3
200
What happens to the figure when the scale factor is 1?
The figure should stay the same.
200
When a scaled copy gets bigger, is the scale factor less than 1, equal to 1, or greater than 1?
Greater than 1
300
Use the following word bank: Scale, scale drawing, scale factor, scaled copy.
A two-dimensional representation of an actual object or place. All the measurements in the drawing correspond to the measurements of the actual object by the same scale. Floor plans and maps an are example.
Scale Drawing
300
A model speed boat is 27 inches. Using a scale of 3 in:5 ft, find the actual size of the boat.
45 feet
300
The scale factor between the two polygons (they are scaled copies) Remember- A Scale Factor is a number you multiply.
1/4
300
How do you find the scale factor when going from a copy back to the original?
A. Divide the copy measurement by the original measurement.
B. Divide the original measurement by the copy measurement.
C. Add the copy and original measurements.
D. Multiply the copy measurement by the original measurement.
Explain how you know.
B
300
A scale drawing of a rectangular swimming pool is 5 inches wide and 9 inches long.
The actual pool is 36 feet long.
What is the area of the actual swimming pool?
A. 720 square feet
B. 800 square feet
C. 900 square feet
D. 1,080 square feet
Show your work and explain your thinking.
A. 720 square feet
400
Fill in the blank.
A ___________ tells us how the actual measurements of an object are represented in a drawing.
Scale
400
What is the distance between Paris, France and Montreal, Canada if it is 16 inches on a map? Use the scale 2 inch : 750 kilometers.
6,000 km
400
The scale factor if the original triangle has side lengths 3, 3, and 3 and the scaled copy has side lengths 1, 1, and 1.
Remember- A Scale Factor is a number you multiply.
1/3
400
Are the two polygons scaled copies?
How do you know?
NO
400
A cyclist gets a new map of her favorite bike trail.
Her old map has a scale of 1 centimeter to 500 meters.
Her new map has a scale of 1 centimeter to 200 meters.
If the maps represent the same area, will the new map be larger, smaller, or the same size as the old map?
A. Larger
B. Smaller
C. The same size
Explain your thinking.
A. Larger, Each centimeter on the old map represents four times the distance on the new map. This means the new map will need more space to represent the same distance.