Chapter 6.GA, Problem 1GA

Investing Scale drawings

Sections 6.1, 6.2, and 6.3

Materials:

• ruler

• tape measure

• grid paper(optional)

This activity may be completed by working in groups or individually.

Scale drawings are used by architects, engineers, interior designers, ship builders, and others. In a scale drawing each unit measurement on the drawing represents a fixed length on the object being drawn. For instance, in an architect’s scale drawing, 1 inch on the drawing may represent 10 feet on a building. The scale describes the relationship between the measurements. If the measurements have the same units, the scale can be expressed as a ratio. In this case, the ration would be 1:20, representing 1 inch to 120 inches (or 10 feet)

Use a ruler and the scale drawing of a college building below to answer the following questions.

How wide are each of the front doors of the college building?