Scale Drawings

Front

What is a scale drawing?

Back

A scale drawing is a representation of an object or space that is proportionally reduced or enlarged to fit on paper, using a specific scale.

Front

What does the scale 1 inch : 3 feet mean?

Back

It means that 1 inch on the drawing represents 3 feet in reality.

Front

If the actual width of an object is 6 feet and the scale is 1 inch : 3 feet, how wide is it in the drawing?

Back

2 inches.

Front

What happens to the size of a figure when the scale factor is less than one?

Back

The figure is reduced.

Front

If a drawing uses a scale of 1 inch : 2 feet, how long is an object that measures 5 inches in the drawing?

Back

10 feet.

Front

What is the scale factor of a drawing that is half the size of the original?

Back

1/2.

Front

What is the scale factor of a drawing that is larger than the original?

Back

Greater than 1.

Front

If a triangle is scaled down by a factor of 3/4, what type of transformation is this?

Back

Reduction.

Front

How do you calculate the actual size of an object from a scale drawing?

Back

Multiply the measurement in the drawing by the scale factor.

Front

What is the scale factor if a drawing is enlarged to twice its original size?

Back

2.