Similar Triangles

Front

What does it mean for two shapes to be similar?

Back

Same shape, but different size.

Front

The sum of the angles in a triangle is...

Back

180 Degrees.

Front

If two triangles are similar, what can we say about their corresponding angles?

Back

Their corresponding angles are equal.

Front

If the sides of two similar triangles are in the ratio 2:3, what is the ratio of their areas?

Back

4:9.

Front

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

Back

Similar.

Front

Back

h=50.

Front

What is the scale factor in similar triangles?

Back

The ratio of the lengths of corresponding sides.

Front

If triangle ABC is similar to triangle DEF, and the length of side AB is 4 cm and side DE is 8 cm, what is the scale factor?

Back

2.

Front

What is the relationship between the perimeters of two similar triangles?

Back

The ratio of their perimeters is equal to the ratio of their corresponding sides.

Front

If two similar triangles have a scale factor of 1:5, how does this affect their areas?

Back

The area of the larger triangle is 25 times that of the smaller triangle.