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 on paper, using a specific ratio to show the relationship between the drawing and the actual size.

Front

How do you calculate actual dimensions from a scale drawing?

Back

To find actual dimensions, multiply the dimensions in the scale drawing by the scale factor (actual size per unit in the drawing).

Front

If 6 cm on a scale drawing represents 12 ft in reality, what is the scale factor?

Back

The scale factor is 2 ft per cm (12 ft / 6 cm).

Front

What is the actual distance if a map shows 1 3/4 inches and the scale is 1 in:100 mi?

Back

The actual distance is 175 miles (1.75 inches x 100 miles/inch).

Front

How do you convert inches on a map to actual miles?

Back

Multiply the number of inches by the scale factor to convert to actual miles.

Front

What is the formula to find the actual distance using a scale?

Back

Actual Distance = Distance on Map x Scale Factor.

Front

If a backyard is 49 ft wide and the scale is 1 in = 7 ft, how wide is it in the drawing?

Back

The width in the drawing is 7 inches (49 ft / 7 ft per inch).

Front

What does a scale of 2.5 cm:0.75 mm mean?

Back

It means that 2.5 cm on the model represents 0.75 mm in reality.

Front

How do you find the diameter of a model if the actual diameter is known?

Back

Use the scale to convert the actual diameter to the model diameter by applying the scale ratio.

Front

What is the actual distance if the scale on a map is 2 inches = 40 miles and the distance on the map is 4.125 inches?

Back

The actual distance is 82.5 miles (4.125 inches x 20 miles/inch).