Geometry Review

Front

What are supplementary angles?

Back

Two angles that add up to 180 degrees.

Front

Provide a counterexample to the claim: 'If two angles are supplementary, then they are not congruent.'

Back

90° and 90° are supplementary angles that are congruent.

Front

What is the definition of vertical angles?

Back

Vertical angles are the angles opposite each other when two lines intersect.

Front

Are vertical angles congruent?

Back

Yes, vertical angles are always congruent (equal measures).

Front

What is a midpoint in geometry?

Back

The point that divides a line segment into two equal parts.

Front

How do you find the endpoint given a midpoint and another endpoint?

Back

Use the formula: Endpoint = 2 * Midpoint - Other Endpoint.

Front

What is a right angle?

Back

An angle that measures exactly 90 degrees.

Front

What is a biconditional statement?

Back

A statement that combines two conditional statements, stating that both are true or both are false.

Front

What is the biconditional for 'A right angle is an angle with 90 degrees'?

Back

An angle is a right angle if and only if it has 90 degrees.

Front

What are adjacent angles?

Back

Angles that share a common side and a common vertex.