Vocabulary
This is an equation stating that two ratios are equivalent.
What is a proportion?
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
Trent measured an Italian restaurand and made a scale drawing with a scale of 1mm : 7 m. If the kitchen is 4mm in the drawing, how long is the actual kitchen?
28 meters
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
The ratio of the length in a drawing or model to the length on an actual (real life) object
What is a Scale
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
Phillip drew a to scale floor plan of his house. If the scale he used was 1in : 4ft, and he drew the driveway 3 inches wide, how wide is the driveway in real life?
12 feet
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
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
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
Clayton drew a scale drawing of a neighborhood park at a scale of 5 centimeters : 9 meters. In the drawing, the volleyball court is 10 centimeters long. What is the length of the actual volleyball court?
18 meters
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
This is a constant of proportionality.
What is scale factor?
Scale: 4 inches = 12 miles. If the drawing length is 13 inches, what is the actual length?
What is 39 miles?
Scale: 0.25inches = 6 feet. Actual length is 18 feet, what is the drawing length?
What is 0.75 in?
2 ft : 24,901 mi