Vocabulary
This is a representation of an object that has been made smaller.
What is a Reduction
If a length of 2 cm was enlarged by a scale factor of 2.25, then this is the new length.
What is 9cm
Ivan drew a scale drawing of his backyard at a scale of 1cm : 3m. If Ivan's deck is 48 m wide in real life, then this is the width of the deck in the drawing.
What is 16 cm
Trent measured an Italian restaurant and made a scale drawing with a scale of 1mm : 7 m. If the kitchen is 4mm in the drawing, then this is the length of the actual kitchen?
What is 28 meters
Triangle ABC is similar to Triangle DEF. These are the pairs of corresponding angles.
What are A and D, B and E, and C and F
The ratio of the length in a drawing or model to the length on an actual (real life) object
What is the Scale or scale factor
Two legs of a Right Triangle A are 3 & 4
Two legs of Right Triangle B are 9 & 12
This is the Scale Factor from Triangle A to Triangle B
What is 3
Mitch was looking at a blueprint of West Lake that has a scale of 1 : 9. If the actual width of the building is 90 meters, then this is the width of the school in the drawing.
What is 10m
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, then the driveway is this wide in real life.
What is 12 feet
Triangle PQR is similar to triangle GHI. These are the pairs of corresponding sides.
What are PQ and GH, QR and HI, and PR and GI
This is a reduced or enlarged representation of an object, usually accompanied by a comparison of sizes.
What is a Scale Model or a Scale Drawing/Diagram
Ms. Blake's Drawing of her house is drawn at a scale of 1/5. One of the dimensions of the real house is 21m. This is the equivalent length of the dimension in a scale drawing in cm.
Duncan measured a pool and made a scale drawing. The scale of the drawing has a scale factor of 1metre:3 feet. If the actual length of the pool table is 15 metres, then the pool in the drawing is this long.
What is 5 feet
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. This is the length of the actual volleyball court.
What is 18 meters
Triangle ABC has side lengths 1.2, 3.5, and 7.2. Triangle DEF has side lengths 6, 17.5 and 36. True or false: the triangles are similar.
What is true
A representation of an object that is larger than the original
What is an Enlargement
In Science class you draw a cell to the scale of
4.8 cm = .04mm
This is the scale factor used.
What is 1,200
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
A drawing of a rectangle has a length of 4m and a width of 5m. It represents an enlargement by a scale factor of 2.5. This is the area of the original rectangle in square centimetres.
What is 32,000 cm2
What is 21.375 cm
Similar triangles have these two properties.
What are equal corresponding angles and proportional corresponding side lengths (same scale factor)
This is the scale factor used for an actual size of 12m and a drawing size of 1.2cm as a decimal, fraction, and ratio in simplest form.
What are 1/1000, 1:1000, and 0.001
This is the drawing length in metres if the actual length is 4.75 km and the scale used is 3:250
What is 57m
This is the actual length in kilometres if the map length is 12 cm and the scale factor is 1:250,000.
What is 30km
A 10-ft ladder reaches 8.5 feet up the wall. Another ladder that is 15 feet is placed against the wall at the same angle as the first one. The second ladder reaches this much further than the first ladder.
DAILY DOUBLE: Draw a correctly labelled diagram to represent this situation to double your points.
What is 4.25 feet