Similar Figures Review

Front

What are similar figures?

Back

Two figures that have the same shape but different sizes.

Front

What is the scale factor in dilation?

Back

The ratio of the lengths of corresponding sides of the original figure to the image after dilation.

Front

If triangle ABC is dilated by a scale factor of 2, what happens to the lengths of its sides?

Back

The lengths of the sides of triangle ABC will double.

Front

What is the relationship between corresponding angles in similar figures?

Back

Corresponding angles in similar figures are equal.

Front

How do you find the coordinates of a point after dilation?

Back

Multiply the coordinates of the point by the scale factor.

Front

What is the scale factor if the original length is 4 and the new length is 8?

Back

The scale factor is 2.

Front

If triangle DEF is similar to triangle ABC, and DE = 6 and AB = 3, what is the scale factor?

Back

The scale factor is 2.

Front

What does it mean for two triangles to be congruent?

Back

Two triangles are congruent if they have the same shape and size.

Front

What is the effect of a scale factor less than 1 on a figure?

Back

It reduces the size of the figure.

Front

If a triangle has angles measuring 30°, 60°, and 90°, what are the angles of a similar triangle?

Back

The angles will also measure 30°, 60°, and 90°.