Similar Triangles

Front

What does it mean for two shapes to be similar?

Back

Same shape, but different size.

Front

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

Back

Similar

Front

Sides in similar figures must be proportional. True or False?

Back

True

Front

Back

Front

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

Back

Their corresponding angles are equal.

Front

What is the ratio of the areas of two similar triangles if the ratio of their corresponding sides is 2:3?

Back

The ratio of their areas is 4:9.

Front

If triangle ABC is similar to triangle DEF, and the length of side AB is 4 cm and side DE is 6 cm, what is the scale factor from triangle ABC to triangle DEF?

Back

Front

What is the relationship between the lengths of corresponding sides of similar triangles?

Back

The lengths of corresponding sides are in proportion.

Front

If two triangles have a scale factor of 1:5, what does this mean for their perimeters?

Back

The perimeter of the second triangle is 5 times the perimeter of the first triangle.

Front

Solve for X: If triangle ABC is similar to triangle DEF and AB = 4 cm, DE = 8 cm, and BC = 6 cm, what is the length of EF?

Back

EF = 12 cm.