What is the primary goal of this lesson on scale drawings?

Scale Drawings and Area Relationships

Interactive Video
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Mathematics
•
6th - 8th Grade
•
Hard

Thomas White
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
To memorize formulas for area calculations.
To learn how to draw scale drawings accurately.
To solve area problems related to scale drawings and percentages.
To understand the history of scale drawings.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you determine the scale factor between two drawings?
By comparing the colors of the drawings.
By adding the side lengths of both drawings.
By measuring the difference in area between the drawings.
By dividing the side length of the scale drawing by the side length of the original drawing.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If the side length of the original drawing is 3 units and the scale drawing is 9 units, what is the scale factor?
1
2
4
3
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the area of a square with a side length of 9 units?
27 square units
36 square units
81 square units
18 square units
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the context of scale drawings, what does the term 'quotient of areas' refer to?
The ratio of the area of the scale drawing to the area of the original drawing.
The difference in perimeter between two drawings.
The product of the side lengths of two drawings.
The sum of the areas of two drawings.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If a scale factor is given as a percent, what must be done before using it in calculations?
Convert it to a fraction or decimal.
Multiply it by 100.
Subtract it from the scale drawing area.
Add it to the original area.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is it unnecessary to find the actual area of each drawing when determining the ratio of areas?
Because the areas are always equal.
Because the ratio of areas is the square of the scale factor.
Because the drawings are identical.
Because the scale factor is always 1.
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