Similar Figures and Scale Factor

Front

If the scale factor is less than one (a fraction) , the new figure will be

Back

a reduction (smaller)

Front

If the scale factor is greater than one, the new figure will be

Back

an enlargement (bigger)

Front

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

Back

Similar

Front

Are all angles in similar figures equal?

Back

True

Front

Which side length corresponds (matches) with EF?

Back

LM

Front

Scale factor from ΔDEF (bigger) to ΔABC (smaller)?

Back

1/2

Front

What is the scale factor from ΔDEF (smaller) to ΔABC (bigger)?

Back

2

Front

Are the two figures similar? (Hint: are they proportional?)

Back

No, not similar because they are the same shape, but side lengths are not proportional.

Front

The two right triangles below are similar. What is x, the missing side length in triangle DEF?

Back

9.75

Front

The pair of figures is similar. Find the missing side.

Back

x = 5