Similar Figures - Proportions

Front

What are similar figures?

Back

Two objects that are the same shape but not the same size.

Front

What does it mean for sides in similar figures to be proportional?

Back

The ratios of the lengths of corresponding sides of similar figures are equal.

Front

If a rectangular garden is 45 ft wide and 70 ft long, what is the length on a blueprint if the width is 9 in?

Back

14 in.

Front

What is the relationship between the dimensions of similar figures?

Back

The dimensions of similar figures maintain a constant ratio.

Front

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

Back

Their corresponding angles are equal.

Front

What is the formula for finding the missing side in similar figures?

Back

(Side1 / Side2) = (MissingSide / CorrespondingSide) or cross-multiplication.

Front

If one side of a triangle is 4 ft and the corresponding side of a similar triangle is 2 ft, what is the scale factor?

Back

1:2.

Front

True or False: All congruent figures are similar.

Back

True.

Front

If a rectangle has a length of 10 cm and a width of 5 cm, what are the dimensions of a similar rectangle with a width of 2 cm?

Back

4 cm length.

Front

What is the scale factor if a model of a car is 1/10 the size of the actual car?

Back

1:10.