Unit 3: Practice Test

Front

What is a dilation in geometry?

Back

A dilation is a transformation that alters the size of a figure but maintains its shape. It is defined by a center point and a scale factor.

Front

What does it mean for two angles to be congruent?

Back

Two angles are congruent if they have the same measure.

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.

Front

If triangle ABC is similar to triangle WXY, what can be said about their corresponding angles?

Back

The corresponding angles of similar triangles are congruent.

Front

How do you find the length of a segment in a right triangle using the Pythagorean theorem?

Back

Front

What is the relationship between the sides of similar triangles?

Back

The lengths of corresponding sides of similar triangles are proportional.

Front

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

Back

The area of a rectangle is found using the formula: Area = length × width.

Front

What does it mean for two lines to be parallel?

Back

Two lines are parallel if they are in the same plane and do not intersect, regardless of how far they are extended.

Front

How can you determine if two triangles are similar?

Back

Two triangles are similar if their corresponding angles are congruent and the lengths of their corresponding sides are proportional.

Front

What is the significance of a scale factor of 1/3 in a dilation?

Back

A scale factor of 1/3 means that the image is reduced to one-third of its original size.