Similar Figures Review

Front

What are similar figures?

Back

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

Front

What does it mean for two ratios to form a proportion?

Back

Two ratios form a proportion if they are equal to each other.

Front

If two triangles have sides in the ratio 2:3, are they similar?

Back

Yes, if the angles are also equal.

Front

What is the relationship between the angles of similar figures?

Back

All corresponding angles in similar figures are congruent.

Front

If the lengths of two similar figures are in the ratio 4:5, what is the ratio of their areas?

Back

The ratio of their areas is 16:25.

Front

How do you find the missing length in similar figures?

Back

Use the ratio of corresponding sides to set up a proportion.

Front

What is the scale factor in similar figures?

Back

The scale factor is the ratio of the lengths of corresponding sides.

Front

If two figures are similar, what can be said about their perimeters?

Back

The ratio of their perimeters is the same as the ratio of their corresponding side lengths.

Front

What is the formula for finding the area of a triangle?

Back

Area = 1/2 * base * height.

Front

If a triangle has sides of lengths 3, 4, and 5, what is the ratio of its sides to a similar triangle with sides 6, 8, and 10?

Back

The ratio is 1:2.