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
Scaled copy
100
The point in Copy 1 that corresponds to point K in the original
Point A
100
What is the scale factor from a square with side lengths 2 to a square with side lengths 8?
4
100
The operation we use to create scaled copies
multiplication
100
A swimming pool is 30 feet by 12 feet. Create a scale drawing using the scale 1 inch : 3 feet.
The rectangle will be 10 inches by 4 inches.
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
Corresponding part
200
The line segment in the original that corresponds with segment EF in Copy 1
Segment OP?
200
The side lengths of the scaled copy if the original rectangle is 2 inches by 3 inches and the scale factor is 4.
8 inches by 12 inches
200
Draw a scaled copy of a square whose side lengths are 3, when the scale factor is 1.
The square should stay the same.
200
The scale of a map says that 2 cm represents 10 km. What is the actual number of kilometers that is represented by 5 centimeters on the map?
25 kilometers
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
Scale factor
300
The point that corresponds to point R
Point C
300
The scale factor between the following two polygons
3
300
How to find the scale factor going from the copy back to the original
Use the reciprocal
300
The scale of a map says that 2 cm represents 10 km. What distance on the map (in centimeters) represents an actual distance of 75 kilometers?
15 cm
300
What is the reciprocal of 8?
1/8
400
A polygon with four sides, such as a square, rectangle, trapezoid, or parallelogram
Quadrilateral
400
The distance that corresponds to the distance between points B and D
The distance between points Q and S
400
The scale factor between the two polygons (they are scaled copies)
1/4
400
A rectangle is 24 by 36 inches. What are the dimensions of a scaled copy with a scale factor of 1/8?
The rectangle will be 3 by 4 inches.
400
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 width of the parking lot?
200 feet wide
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.
Reciprocal
500
The corresponding angle to angle ADC
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.
1/3
500
A scale drawing of a rectangular park is 7 inches long. The actual park is 280 yards long.
What is the scale used for this scale drawing?
1in: 40 yds
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