Scale Drawings

Front

What is a scale drawing?

Back

A scale drawing is a representation of an object or area that is proportionally reduced or enlarged to fit a specific size, using a consistent scale.

Front

What does the scale 1 cm : 10 m mean?

Back

It means that 1 centimeter on the drawing represents 10 meters in actual distance.

Front

How do you calculate actual distance from a scale drawing?

Back

Multiply the distance on the drawing by the scale factor.

Front

If a scale is 1 in : 100 mi, how do you find the actual distance for 1.75 inches?

Back

Multiply 1.75 inches by 100 miles to get 175 miles.

Front

What is the formula to convert model dimensions to actual dimensions?

Back

Actual Dimension = Model Dimension × Scale Factor.

Front

If a model is built at a scale of 5 in to 25 ft, what is the scale factor?

Back

The scale factor is 25 ft / 5 in = 5 ft per inch.

Front

How wide is a window that is 1.5 in in a model at a scale of 5 in to 25 ft?

Back

The actual width is 1.5 in × 5 ft/in = 7.5 ft.

Front

What is the actual width if the scale is 1 in = 7 ft and the width in the photo is 7 in?

Back

The actual width is 7 in × 7 ft/in = 49 ft.

Front

How do you find the length of a side in a scale drawing?

Back

Use the scale to convert the measurement from the drawing to the actual length.

Front

If a parking lot's longer side measures 63 cm on a scale drawing with a scale of 1 cm : 5 m, what is the actual length?

Back

The actual length is 63 cm × 5 m/cm = 315 m.