Similar Figures

Front

Shapes that are the same shape AND the same size are _______.

Back

Congruent

Front

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

Back

Similar

Front

Are the following similar? Explain your reasoning: Two triangles with sides 3 cm, 4 cm, 5 cm and 6 cm, 8 cm, 10 cm.

Back

No, corresponding sides are NOT in proportion.

Front

If two triangles have angles measuring 30°, 60°, and 90°, they are _______.

Back

Similar

Front

The ratio of the sides of two similar figures is 2:3. If one side of the first figure is 4 cm, what is the corresponding side of the second figure?

Back

6 cm

Front

A tree is 12 feet tall and casts a shadow 9 feet long. A building nearby casts a shadow that measures 24 feet. How tall is the building? (Draw a picture & set up a proportion)

Back

32 feet

Front

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

Back

Corresponding angles are equal.

Front

If the lengths of the sides of two similar rectangles are in the ratio 1:4, what is the ratio of their areas?

Back

1:16

Front

What is the definition of similar figures?

Back

Figures that have the same shape but not necessarily the same size.

Front

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

Back

Corresponding sides are in proportion.