Scale Factors & 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 scale.

Front

What does scale factor mean?

Back

The scale factor is the ratio of the dimensions of the drawing to the dimensions of the actual object.

Front

If a scale factor is 1:2, what does it mean?

Back

It means that the drawing is half the size of the actual object.

Front

How do you calculate the scale of a drawing?

Back

To calculate the scale, divide the length of the drawing by the actual length of the object.

Front

What is the scale of a drawing if 1 inch represents 7 yards?

Back

The scale is 1 inch = 7 yards.

Front

If a drawing of a soccer field is 14 inches long and the actual field is 98 yards, what is the scale?

Back

The scale is 1 inch = 7 yards.

Front

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

Back

The actual distance is 82.5 miles.

Front

What happens to the size of a figure if the scale factor is greater than 1?

Back

The figure will be enlarged.

Front

What is the scale factor from triangle ABC to triangle DEF if the sides of DEF are twice as long as those of ABC?

Back

The scale factor is 2:1.

Front

If a drawing is 5 inches long and the actual object is 15 inches long, what is the scale factor?

Back

The scale factor is 1:3.