Scale Drawings

Front

What is a scale drawing?

Back

A scale drawing is a representation of an object or space that maintains the proportions of the original, using a specific ratio to convert measurements.

Front

What does the scale '1/4 inch = 3 feet' mean?

Back

It means that every 1/4 inch on the drawing represents 3 feet in real life.

Front

How do you convert inches on a scale drawing to actual feet?

Back

To convert, multiply the number of inches by the scale factor. For example, if 1/4 inch = 3 feet, then 1 inch = 12 feet.

Front

If 1/4 inch = 30 miles, how many miles does 1 inch represent?

Back

1 inch represents 120 miles because 1 inch = 4 times 1/4 inch, so 4 times 30 miles = 120 miles.

Front

What is the formula to find the actual length from a scale drawing?

Back

Actual Length = (Length on Drawing) x (Scale Factor).

Front

In a scale drawing, if 1 cm = 3 inches, how do you find the real height of an object that measures 2 cm?

Back

Multiply the drawing measurement by the scale: 2 cm x 3 inches/cm = 6 inches.

Front

What is the purpose of using scale drawings?

Back

Scale drawings help visualize and plan real-life objects or spaces accurately without needing to create them at full size.

Front

If a model car is 1/2 cm = 4 inches, what is the real-life length of a car that is 3 cm long in the model?

Back

The real-life length is 3 cm x 8 inches/cm = 24 inches.

Front

How do you determine the actual dimensions of a half-court if the scale is 1 inch = 15 feet?

Back

Multiply the dimensions on the drawing by the scale factor: Length in feet = Length in inches x 15.

Front

What does it mean if a drawing is not to scale?

Back

It means the proportions of the drawing do not accurately represent the actual dimensions of the object or space.