Unit 1 Scale Drawings

Front

What is a scale drawing?

Back

A scale drawing is a representation of an object or space that is proportionally reduced or enlarged to fit on paper, using a specific scale factor.

Front

Define scale factor.

Back

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

Front

If the scale factor is less than one, what does that indicate about the figure?

Back

It indicates that the figure is a reduction of the actual object.

Front

What happens to a figure when the scale factor is greater than one?

Back

The figure is an enlargement of the actual object.

Front

How do you simplify a scale like 3cm = 4.5m?

Back

Convert both measurements to the same unit, then divide both sides by the same number to find the simplest form.

Front

What is the scale if a model is 2 ft wide and the actual stadium is 200 yd wide?

Back

1 foot = 100 yards.

Front

How do you find the actual length from a blueprint scale of 3cm = 4.5m if the drawing is 5cm?

Back

First, simplify the scale to 2cm = 3m, then use proportions to find the actual length.

Front

What is the missing side if the options are 5, 7, 9, 11 and the answer is 7?

Back

The missing side is 7.

Front

What is the relationship between scale drawings and proportions?

Back

Scale drawings use proportions to maintain the same shape while changing the size.

Front

How do you convert feet to yards in a scale drawing?

Back

To convert feet to yards, divide the number of feet by 3.