Identify Similar Shapes and Scale Factors

Front

What is the number you multiply by the sides to create a similar figure?

Back

Scale Factor

Front

What is the scale factor from the large triangle to the small triangle if the sides are in the ratio 3:4?

Back

3/4

Front

Which side corresponds to side FE in a similar triangle?

Back

ML

Front

What do we call sides that are in the same position in a different shape?

Back

Corresponding Sides

Front

If you use a percent less than 100% to change the original shape, what happens to the new image?

Back

The new image is smaller than the original.

Front

What is a scale factor of 1?

Back

The two shapes are congruent.

Front

If the scale factor is greater than 1, what happens to the size of the new shape?

Back

The new shape is larger than the original.

Front

What is the relationship between corresponding angles in similar shapes?

Back

Corresponding angles are equal.

Front

If triangle ABC is similar to triangle DEF, what can we say about their corresponding sides?

Back

The ratios of their corresponding sides are equal.

Front

How do you find the scale factor between two similar shapes?

Back

Divide the length of a side of one shape by the length of the corresponding side of the other shape.