Geometry Midterm Review

Front

What is the definition of a midpoint?

Back

A midpoint is a point that divides a line segment into two equal parts.

Front

What is the result of reflecting a point across the x-axis?

Back

The y-coordinate of the point changes sign, while the x-coordinate remains the same.

Front

If ray OR is the angle bisector of ∠POQ, and m∠POR = 38°, what is the measure of ∠POQ?

Back

m∠POQ = 76°.

Front

What is a line in geometry?

Back

A line is a straight path that extends infinitely in both directions.

Front

What does SAS stand for in triangle congruence?

Back

SAS stands for Side-Angle-Side, a criterion for triangle congruence.

Front

What is the definition of a vertex in geometry?

Back

A vertex is a point where two or more lines or edges meet.

Front

What is the formula for the area of a triangle?

Back

Area = 1/2 * base * height.

Front

What is the Pythagorean theorem?

Back

In a right triangle, a² + b² = c², where c is the hypotenuse.

Front

What is the definition of a polygon?

Back

A polygon is a closed figure formed by a finite number of straight line segments.

Front

What is the difference between a line and a line segment?

Back

A line extends infinitely in both directions, while a line segment has two endpoints.