Vocabulary
Corresponding Parts
Scale Factors
Scaled Copies
Scale Drawing
Random
100
A copy of a figure where every length in the original figure is multiplied by the same number
What is a scaled copy?
100
The point in Copy 1 that corresponds to point K in the original
What is point A?
100
The side lengths of the scaled copy if the original rectangle is 2 inches by 3 inches and the scale factor is 4.
What is 8 inches by 12 inches?
100
The operation we use to create scaled copies
multiplication
100
A scale drawing of a rectangular park is 5 inches wide
and 7 inches long. The actual park is 280 yards long.
What is the scale used for this scale drawing?
7in: 280 yds
or
1in: 40 yds
100
When scaling a shape, what happens to the angles?
They stay the same
200
A point, segment, angle, or distance in an original figure that matches up with a point, segment, angle, or distance in a copy
What is a corresponding part?
200
The line segment in the original that corresponds with segment EF in Copy 1
What is segment OP?
200
The scale factor between the two scaled copies below
What is 2?
200
The length of the left side on the bottom polygon (they are scaled copies)
What is 3?
200
A scale drawing of a rectangular parking lot is
6 inches long and 5 inches wide. The actual
parking is 240 feet long. What is the area of
the actual parking lot, in square feet?
48,000
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
The number we multiply all the lengths in the original figure by to create a scaled copy
What is the scale factor?
300
The point that corresponds to point R
What is point C?
300
The scale factor between the following two polygons
What is 3?
300
Draw a scaled copy of a square whose side lengths are 3, when the scale factor is 1.
The square should stay the same.
300
The scale of a map says that 4 cm represents 5 km. What distance on the map (in centimeters) represents an actual distance of 4 kilometers?
3.2 cm
300
What is the reciprocal of 8?
1/8
400
A polygon with four sides, such as a square, rectangle, trapezoid, or parallelogram
What is a quadrilateral?
400
The distance that corresponds to the distance between points B and D
What is the distance between points Q and S?
400
The scale factor between the two polygons (they are scaled copies)
What is 1/4?
400
How to find the scale factor going from the copy back to the original
What is taking the reciprocal?
400
The scale of a map says that 4 cm represents 5 km. What is the actual number of kilometers that is represented by 5 centimeters on the map?
4
400
Multiplying by 1/6 is the same as dividing by...
6
500
Dividing 1 by a number gives the _____________ of this number. You can also find this by switching the numerator and denominator of a fraction.
What is a reciprocal?
500
The corresponding angle to angle ADC
What is angle PSR?
500
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.
What is 1/3?
500
Are the two polygons scaled copies?
NO
500
Tyler has two different maps of Ohio. The scale on the first map is 1 cm to 10 km. The distance from Cleveland to Cincinnati is 40 cm. The scale on the second map is 1 cm to 50 km. What is the distance from Cleveland to Cincinnati on the second map? Explain your reasoning.
8 cm
500
The sides of a square are 2 inches. The square is scaled by a factor of 5. What is the area of the scaled copy?
the area of the scaled copy is 100 inches squared