Vocabulary
Find the Scale Factor
Find the Scale Length
Is it similar?
Find the Scale Used
100
This is a representation of an object that has been made smaller.
What is a Reduction
100
The scale is 1 inch = 10 inches, find the scale factor.
What is 10?
100
Ivan drew a scale drawing of his backyard at a scale of 1in : 3ft. If Ivan's deck is 48 feet wide in real life, what is the width of the deck in the drawing?
16 in
100
No they are not similar because their corresponding angles are not congruent.
100
David made a scale drawing of a house. In real life, the garage is 10 meters long. It is 2 millimeters long in the drawing.
What is the scale of the drawing, 1mm : _________
5 meters
200
The ratio of the length in a drawing or model to the length on an actual (real life) object
What is a Scale
200
Two legs of Triangle A are 3 & 4
Two legs of Triangle B are 9 & 12
The answer is the Scale Factor from Triangle A to Triangle B
What is 3?
200
Mitch was looking at a blueprint of West Lake that has a scale of 1 cm : 9 m. If the actual width of the building is 90 meters, what is the width of the school in the drawing?
10 centimeters
200
Yes they are similar because their angles are congruent and their corresponding side lengths are proportional.
200
Anne made a scale drawing of a house and its lot. The backyard is 5 inches long in the drawing. The actual yard is 50 feet long.
What scale did Anne use for the drawing?
1in : _____________
10 feet
300
This is a reduced or enlarged representation of an object, usually accompanied by a comparison of sizes.
What is a Model or a Scale Drawing
300
Mr. A's Drawing of his house is drawn at a scale of 1/2 in = 8 ft
Find the Scale Factor, remember to convert!
What is 192?
300
Duncan measured a game room and made a scale drawing. The scale of the drawing was 8 inches : 3 feet. If the actual length of the pool table is 6 feet, how long is the pool table in the drawing?
16 inches
300
Are all squares similar? Explain.
Yes, all squares are similar because all squares have four 90 degree angles and only one side length measure, so all corresponding sides will be proportional.
300
Tommy measured a county park and made a scale drawing. The picnic area, which is 86 yards wide in real life, is 43 inches wide in the drawing.
What scale did Tommy use? 1in : ____________
2 yards
400
A representation of an object that is larger than the original
What is an Enlargement
400
In Science class you draw a cell to the scale of
.04 mm = 48 mm
Find the scale factor.
What is 1,200?
400
A Flagpole is 30 ft tall. Using the scale 3 in : 5 ft, draw a flagpole and label it's height.
Flagpole should be labeled 18 inches tall
400
Are all rectangles proportional? Explain.
Not all rectangles are proportional. Although every rectangle has congruent 90 degree angles, their side lengths are not necessarily proportional, and both must be true for two figures to be similar.
400
A teacher has a globe that has a circumference of 2 ft. If the circumference of the actual earth is 24,901 mi, What scale was used to create the globe?
2 ft : 24,901 mi
500
Similar figures always have these kind of angles.
What is congruent?
500
The side length of the original square is 7 feet.
The side length of the new square is 49 feet.
The scale factor is this.
What is 7?
500
On an architect’s drawing of a house, 1 inch represents 7 feet. If the bedroom window is 5 inches long on the drawing, how long will it be on the actual house?
What is 35 feet?