Similar Figures

• same shape or figure

• ratios of the lengths of their corresponding sides are equal

• corresponding angles are congruent

The shapes must be the same, in any direction or rotation.

The size does not matter as long as we are able to identify the proportional relationship of their measurements.

Figure Blue and Figure Pink are similar because...

There is a relationship between 15 and 5 and also 21 and 7

Can you see that relationship?

• Set up a proportion and identify a relationship (Multiply or divide across or up and down)

• Find the cross products to determine if they are equal.

When there is no identifiable relationship and the cross products are not equal