Vocabulary
Corresponding Parts
Scale Factors
Scaled Copies
Random
100
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A copy of a figure where every length in the original figure is multiplied by the same number
What is a scaled copy?
100
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The point in Copy 1 that corresponds to point K in the original
What is point A?
100
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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
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The operation we use to create scaled copies
multiplication
100
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When scaling a shape, what happens to the angles?
They stay the same
200
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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
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The line segment in the original that corresponds with segment EF in Copy 1
What is segment OP?
200
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The scale factor between the two scaled copies below
What is 2?
200
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The length of the left side on the bottom polygon (they are scaled copies)
What is 3?
200
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When a scaled copy gets bigger, is the scale factor less than 1, equal to 1, or greater than 1?
Greater than 1
300
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The number we multiply all the lengths in the original figure by to create a scaled copy
What is the scale factor?
300
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The point that corresponds to point R
What is point C?
300
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The scale factor between the following two polygons
What is 3?
300
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This happens to a scaled copy of a square whose side lengths are 3, when the scale factor is 1.
The square should stay the same.
300
Add 2000 points- take away 1000 points from 1 team
What is the reciprocal of 8?
1/8
400
TRADE POINTS
A shape that is made of straight lines and is closed
What is a polygon?
400
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The distance that corresponds to the distance between points B and D (hint- think segment)
What is the distance between points Q and S?
400
TRADE POINTS
The scale factor between the two polygons (they are scaled copies) Remember- A Scale Factor is a number you multiply.
What is 1/4?
400
Add 5000 points- take 1500 points away from 3 teams
How to find the scale factor going from the copy back to the original
What is taking the reciprocal?
400
TRADE POINTS
Dividing by 6 is the same as multiplying by...
1/6
500
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Dividing 1 by a number gives the _____________ of this number. You can also find this by flipping the numerator and denominator of a fraction. It is also called the multiplicative inverse.
What is a reciprocal?
500
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The corresponding angle to angle ADC
What is angle PSR?
500
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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.
What is 1/3?
500
TRADE POINTS
Are the two polygons scaled copies?
NO
500
Add 6000 points- add 2500 points
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