Kendall Hunt Geometry Unit 3 Review

Front

What does it mean for two triangles to be similar?

Back

Two triangles are similar if their corresponding angles are equal and their corresponding sides are in proportion.

Front

What is the value of x in the equation that makes it true if the options are x = 7, x = 6, x = 8, x = 9?

Back

x = 9

Front

In triangle ABC, if angle A is 90 degrees, AB = 1 unit, and AC = 8 units, what is the approximate length of BC?

Back

BC = 8.1 units

Front

How can you determine if line BC is parallel to line DE?

Back

Line BC is not parallel to line DE because there is no dilation that sends triangle ADE to triangle ABC.

Front

If a figure is dilated, what can be said about the corresponding angles?

Back

Corresponding angles are congruent.

Front

What is the Pythagorean theorem?

Back

In a right triangle, the square of the length of the hypotenuse is equal to the sum of the squares of the lengths of the other two sides (a² + b² = c²).

Front

What is a dilation in geometry?

Back

A dilation is a transformation that produces an image that is the same shape as the original, but is a different size.

Front

What is the scale factor in a dilation?

Back

The scale factor is the ratio of the length of a side of the image to the length of the corresponding side of the original figure.

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, no matter how far they are extended.

Front

What is the relationship between corresponding sides of similar triangles?

Back

The lengths of corresponding sides of similar triangles are proportional.