Vocabulary
an equation that shows two ratios are equal
proportion
If a map key says 2 inches = 3 miles, then 6 inches = ___ miles.
9 miles
Jordyn is making a scale drawing of a mall. She is using a scale of 1 cm : 3 ft. If the mall is 126 feet long in real life, how long will it be on her scale drawing?
42 cm
drawing used when an object is too large or too small to represent at its actual size; dimensions of the object have been reduced or enlarged
scale drawing
A picture of a cake is 3 inches tall. If the scale factor is 4, how many inches tall is the real cake?
12 inches tall
The scale for a map to actual distance is 2 cm to 100 mi. The driving distance on the map between Los Angeles and Albany is 16.4 cm. What is the actual distance, in miles, between Los Angeles and Las Vegas?
820 miles
compares the length on the scale drawing to a length of the actual object and can be written as a ratio
scale
If a model of a train is 3 feet long and the model used a scale factor of 1 foot : 30 meters, how long is the actual train?
90 meters
The actual dimensions of a playground are 20 ft by 40 ft. The dimensions of a scale model of the playground are 2 inches by 4 inches. What is the scale factor?
10
If 2 inches on a map equals 20 miles in real life, how many miles would be represented by 6.5 inches?
130 miles
A contractor is given a scale drawing of a rectangular patio. The scale from the patio to the drawing is 4 feet to 1 inch. What is the perimeter of the actual patio IF the dimensions of the drawing are 4 inches by 2.5 inches?
52 inches
A contractor is given a scale drawing of a rectangular patio. The scale from the patio to the drawing is 4 feet to 1 inch. What is the area of the actual patio IF the dimensions of the drawing are 4.25 inches by 2.5 inches?
170 square feet