Unit 2 Review

Front

What are supplementary angles?

Back

Supplementary angles are two angles whose measures add up to 180 degrees.

Front

What is the corresponding angle to angle 4 if angle 8 is given?

Back

Angle 8 is the corresponding angle to angle 4.

Front

How do you find the value of x in an equation?

Back

To find the value of x, isolate x on one side of the equation using algebraic operations.

Front

What does the transformation (x, y) -> (x, -y) represent?

Back

This transformation represents a reflection across the x-axis.

Front

What is the result of rotating a point 180° about the origin?

Back

The coordinates of the point (x, y) become (-x, -y) after a 180° rotation about the origin.

Front

Define congruent angles.

Back

Congruent angles are angles that have the same measure.

Front

What is the definition of a transformation in geometry?

Back

A transformation is an operation that moves or changes a shape to create a new shape.

Front

What is the difference between rotation and reflection?

Back

Rotation turns a shape around a point, while reflection flips a shape over a line.

Front

What are vertical angles?

Back

Vertical angles are the angles opposite each other when two lines intersect, and they are always congruent.

Front

What is the sum of the interior angles of a triangle?

Back

The sum of the interior angles of a triangle is always 180 degrees.