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Grade 5 - Mathematics
9.3 Scale

  1. A scale drawing uses a ratio called its scale to show the relationship between the size of the things in the drawing and their actual size.
  2. When the scale is written in simplest form, it is called the scale factor.
Example: A scale drawing uses a scale of 1 inch = 6 ft. If it is 3 feet on the drawing, what is the actual size?
1 inch = 6 ft
3 inches = 18 ft
Answer: 18 ft

Directions: Answer the following questions. Also write at least 10 examples of your own.
Q 1: A scale drawing uses a ratio called its scale to show the relationship between the size of the things in the drawing and their actual size.
true
false

Q 2: Which of these is an examples of a scale.
a floor plan of a building
a rectangle
a circle

Q 3: Which of these is an examples of a scale.
a city map
a rectangle
a square

Q 4: Megan has made a plan of her room with a scale of 1inch = 3 feet. On her plan the side wall is 5 inches long. How long is it actually?
15 feet
5 feet
20 feet

Q 5: John has made a plan of his office room with a scale of 1inch = 2 feet. if his side wall is 5 inches long. How long is it actually?
10 feet
15 feet
5 feet

Q 6: On a plan the length of a schoolyard is 2 centimeters. It is actually 50 meters long. What is the scale of the plan?
12.5 meters
50 meters
25 meters

Question 7: This question is available to subscribers only!

Question 8: This question is available to subscribers only!


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