SOS Math 800: Unit 4- Models and Scales

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An architect represents a 9 inch height as 1/4 inch on a scale drawing. Which of the following scales did the architect use?

1 foot = 1/3 inch

A blueprint has a rectangle with length 12 inches and width 8 inches. The actual dimensions of the rectangle are 96 feet by 64 feet. What was the scale used?

1 inch= 8 feet

On a map, 90 miles is represented by 3 inches. A measure of 1/2 inch on the map would represent ______miles.

15

On the map, 1 inch represents 100 miles. Approximately how many miles is it from Mackinac Bridge to Green Bay? You may use your own ruler to approximate the distance between the two cities. (For accurate measurement, your screen's zoom should be set at 100%.)

150 miles

A building has 4 stories that are each 15 feet high. A scale drawing has the height of the building at 5 inches. Which of the following is the correct scale?

1:144

A map uses a scale of 1 centimeter = 200 meters. If it is 5 kilometers between two locations, how many centimeters on the map is it?

25 cm

The scale of a model airplane is 1:72. If the wingspan on the model airplane is 7 1/2 inches, then the actual wingspan is _____.

45 feet

A model scale is 1 cm = 8 m. If the actual object is 40 meters, the model is______cm long.

5

scale drawing

a drawing of an object which is proportional to its original

scale model

an object which is proportional to its original

scale

the factor by which an object is reduced or enlarged in order to create a scale model or drawing

enlarge

to make something bigger

reduce

to make something smaller


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