Scale Drawing/Similar Figures

Front

What are similar figures?

Back

Two figures that have the same shape but not necessarily the same size. Their corresponding sides are proportional, and their angles are congruent.

Front

What does it mean for sides to be proportional?

Back

Sides are proportional when the ratios of the lengths of corresponding sides of two figures are equal.

Front

How do you determine if two figures are similar?

Back

Check if their corresponding angles are equal and their corresponding sides are proportional.

Front

What is a scale drawing?

Back

A representation of an object that is proportional to its actual size, using a specific ratio.

Front

If a scale is 1 inch = 3 feet, how many feet are in 6 inches?

Back

18 feet.

Front

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

Back

1 foot = 100 yards.

Front

If the scale is 1 inch = 300 miles, what is the actual distance for 3 inches?

Back

900 miles.

Front

What is the formula to find the scale of a drawing?

Back

Scale = (Length in drawing) / (Actual length).

Front

What is the difference between equal and similar figures?

Back

Equal figures have the same size and shape, while similar figures have the same shape but different sizes.

Front

What is an example of a scale drawing?

Back

A blueprint of a house where 1 inch represents 3 feet in actual size.