Scale Drawings/Similar Shapes
Flashcard
•
Mathematics
•
7th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a scale drawing?
Back
A scale drawing is a representation of an object or space that is proportionally reduced or enlarged to fit a specific size, maintaining the same ratios as the original.
2.
FLASHCARD QUESTION
Front
What does the term 'scale' mean in the context of drawings?
Back
In drawings, 'scale' refers to the ratio of the size of the drawing to the size of the actual object. For example, a scale of 1 inch = 10 feet means that 1 inch on the drawing represents 10 feet in reality.
3.
FLASHCARD QUESTION
Front
How do you calculate the height of a model using a scale?
Back
To calculate the height of a model, multiply the actual height by the scale factor. For example, if the actual height is 300 ft and the scale is 1 inch = 10 ft, the model height would be 300 ft / 10 ft/in = 30 inches.
4.
FLASHCARD QUESTION
Front
If a drawing has a scale of 1 in = 7 ft, how wide is a backyard that is 49 ft wide in the drawing?
Back
To find the width in the drawing, divide the actual width by the scale factor: 49 ft / 7 ft/in = 7 inches.
5.
FLASHCARD QUESTION
Front
What is the actual distance if 3.5 inches on a map represents a scale of 2 in = 300 miles?
Back
To find the actual distance, first determine how many sets of 2 inches are in 3.5 inches: 3.5 in / 2 in = 1.75. Then multiply by 300 miles: 1.75 * 300 miles = 525 miles.
6.
FLASHCARD QUESTION
Front
What is the formula to find the scale factor?
Back
The scale factor can be found using the formula: Scale Factor = Size on Drawing / Actual Size.
7.
FLASHCARD QUESTION
Front
What is the importance of using scale drawings?
Back
Scale drawings are important because they allow for accurate representation of large objects or spaces in a manageable size, making it easier to visualize and plan.
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