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 or scale.

Front

What does the scale 1 inch : 2 feet mean?

Back

It means that every 1 inch on the drawing represents 2 feet in reality.

Front

If a drawing uses a scale of 1 inch : 3 feet, how do you find the actual size from the drawing size?

Back

Multiply the size in inches by 3 to get the actual size in feet.

Front

What is the scale factor?

Back

The scale factor is the ratio of a length in a scale drawing to the corresponding length in the actual object.

Front

What does a scale factor of ½ indicate?

Back

It indicates a reduction in size; the drawing is half the size of the actual object.

Front

If a triangle's scale factor is 3/4, what does that mean?

Back

It means the drawing is 3/4 the size of the actual triangle.

Front

How do you convert a scale drawing measurement to actual size?

Back

Multiply the measurement in the drawing by the scale's corresponding actual size.

Front

If 1/4 inch on a map represents 30 miles, how many miles does 1 inch represent?

Back

1 inch represents 120 miles.

Front

What is the actual length of an air hockey table that is 5 inches in a drawing with a scale of 1 inch : 2 feet?

Back

The actual length is 10 feet.

Front

If a tent is 6 feet wide in reality and the scale is 1 inch : 3 feet, how wide is it in the drawing?

Back

It is 2 inches wide in the drawing.