Scale Drawings

Front

Scale factor is _________

Back

the number you multiply the original shape by in order to get the scale copy.

Front

What is the scale factor from ΔDEF to ΔABC if the sides of ΔDEF are half the length of ΔABC?

Back

1/2

Front

If the scale factor is greater than one, the new figure will be _________.

Back

an enlargement.

Front

A rectangular garden is 45 ft wide and 70 ft long. On a blueprint, the width is 9 in. Identify the length on the blueprint.

Back

14 in.

Front

Pam drew a scale drawing of a game room. She used 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

10 Feet.

Front

What does a scale drawing represent?

Back

A proportional representation of an object or space, maintaining the same ratios as the original.

Front

If a scale factor is 3, how does the area of the new figure compare to the original?

Back

The area of the new figure is 9 times larger than the original.

Front

What is the scale factor if a model is 4 times larger than the original object?

Back

4.

Front

In a scale drawing, if 1 inch represents 5 feet, how many inches would represent 20 feet?

Back

4 inches.

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.