Dilations, Scale Factors, Similar Figures Review

Front

What is the definition of similar figures?

Back

Similar figures are shapes that have the same shape but may differ in size. Their corresponding angles are equal, and their corresponding sides are in proportion.

Front

What does SSS stand for in triangle similarity?

Back

SSS stands for Side-Side-Side, which is a criterion for triangle similarity stating that if the corresponding sides of two triangles are in proportion, then the triangles are similar.

Front

What is the scale factor in a dilation?

Back

The scale factor is a number that describes how much a figure is enlarged or reduced during a dilation. It is the ratio of the lengths of corresponding sides of the original figure to the dilated figure.

Front

If the scale factor is greater than 1, what happens to the figure?

Back

If the scale factor is greater than 1, the figure undergoes an enlargement.

Front

If the scale factor is less than 1, what happens to the figure?

Back

If the scale factor is less than 1, the figure undergoes a reduction.

Front

What mathematical operation is used with the scale factor in a dilation?

Back

Multiplication is used with the scale factor in a dilation.

Front

How do you determine if two triangles are similar using the AA criterion?

Back

The AA criterion states that if two angles of one triangle are equal to two angles of another triangle, then the triangles are similar.

Front

What is the relationship between the coordinates of a figure and its dilated image?

Back

The coordinates of a dilated image are found by multiplying the original coordinates by the scale factor.

Front

What is the scale factor if the original figure has a side length of 4 and the dilated figure has a side length of 2?

Back

Front

If triangle ABC is similar to triangle DEF, what can be said about their corresponding sides?

Back

The lengths of the corresponding sides of triangle ABC and triangle DEF are in proportion.