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 scale to reduce or enlarge its size.

Front

What does scale factor mean?

Back

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

Front

What is the scale factor of ½?

Back

Reduction.

Front

What is the scale factor of 5?

Back

Enlargement.

Front

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

Back

It means the triangle is scaled down to 75% of its original size.

Front

How do you calculate the actual distance represented by a scale on a map?

Back

Multiply the scale distance by the scale factor.

Front

In a map, if 1/4 inch = 30 miles, how many miles does 1 inch represent?

Back

120 miles.

Front

If a scale drawing uses a scale of 1 inch : 2 feet, how long is a 5-inch drawing in reality?

Back

10 feet.

Front

What is the purpose of using scale drawings?

Back

To create accurate representations of objects that are too large or too small to be drawn at actual size.

Front

What is an example of a scale factor greater than 1?

Back

A scale factor of 2 means the drawing is twice the size of the actual object.