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, maintaining the same ratios as the original.

Front

What does the scale 1/4 inch = 30 miles mean?

Back

It means that every 1/4 inch on the map represents 30 miles in reality.

Front

How do you find the actual distance represented by 1 inch on a map with a scale of 1/4 inch = 30 miles?

Back

To find the actual distance for 1 inch, multiply 30 miles by 4 (since 1 inch = 4 quarters of an inch), resulting in 120 miles.

Front

What is a scale factor?

Back

A scale factor is a number that scales, or multiplies, some quantity. In scale drawings, it indicates how much larger or smaller the drawing is compared to the actual object.

Front

If the scale factor is greater than one, what happens to the figure?

Back

The figure will be an enlargement.

Front

If the scale factor is less than one, what happens to the figure?

Back

The figure will be a reduction.

Front

What is the scale factor from a large triangle to a small triangle if the sides of the small triangle are 3/4 the length of the large triangle?

Back

The scale factor is 3/4.

Front

Pam drew a scale drawing of a game room using the scale 1 inch : 2 feet. If the air hockey table is 5 inches in the drawing, how long is the actual air hockey table?

Back

The actual air hockey table is 10 feet.

Front

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

Back

Multiply the measurement on the drawing by the scale factor to find the actual size.

Front

What is the purpose of using scale drawings?

Back

Scale drawings help visualize and represent large objects or areas in a manageable size while maintaining accurate proportions.