Question

Edna drew a scale drawing of a house and its lot. She used the scale 1 inch = 1 foot. What scale factor does the drawing use?

Simplify your answer and write it as a ratio, using a colon.

Answer 1

To determine the scale factor used in Edna's drawing, we can express the scale of 1 inch = 1 foot in terms of a ratio.

First, we need to convert the units to the same measurement. Since 1 foot is equal to 12 inches, we can rewrite the scale as:

1 inch : 12 inches

Now, we can simplify the ratio:

The ratio 1:12 means that for every 1 inch on the drawing, it represents 12 inches (or 1 foot) in real life.

Thus, the scale factor is:

**1:12**