Scale Drawing/Similar Figures (MOD 30)

Front

What is a scale drawing?

Back

A proportional drawing of an object that represents its dimensions in a specific ratio to the actual object.

Front

What does the term 'scale' refer to in scale drawings?

Back

A ratio between the measurements of the drawing and the actual object.

Front

If a scale drawing uses a scale of 1 in = 4 ft, how do you find the actual height of an object represented in the drawing?

Back

Multiply the measurement in the drawing by the scale factor.

Front

A flagpole measures 12 inches in a drawing with a scale of 1 in = 4 ft. How tall is the actual pole?

Back

48 feet.

Front

What is the constant of proportionality in a scale drawing?

Back

The fixed ratio that relates the dimensions of the drawing to the actual object.

Front

If the actual width of a backyard is 49 ft and the scale is 1 in = 7 ft, how wide is it in the drawing?

Back

7 inches.

Front

What is the formula to find the missing side of similar figures?

Back

Set up a proportion based on the corresponding sides of the figures.

Front

If two figures are similar, what can be said about their corresponding angles?

Back

Their corresponding angles are equal.

Front

If a drawing of a tree is 3 inches tall and the scale is 1 in = 5 ft, how tall is the actual tree?

Back

15 feet.

Front

What is the relationship between the sides of similar figures?

Back

The ratios of the lengths of corresponding sides are equal.