Basic Geometry Concepts Quiz

What is a line segment in geometry?

• A part of a line that extends indefinitely in both directions

• A part of a line that has two endpoints

• A part of a line that has one endpoint and extends indefinitely in one direction

• A curved line connecting two points

What type of angle measures exactly 90 degrees?

• Straight angle

• Right angle

• Obtuse angle

• Acute angle

What is the measure of an obtuse angle?

• Less than 90 degrees

• Exactly 90 degrees

• More than 90 but less than 180 degrees

• Exactly 180 degrees

Which line property states that they never intersect?

• Intersecting

• Parallel

• Perpendicular

• Converging

What are complementary angles?

• Angles that add up to 90 degrees

• Angles that share a common vertex

• Angles that add up to 180 degrees

• Angles that are opposite to each other

What is the transitive property in geometry?

• If a line is parallel to a second line, it is also parallel to a third line

• If an angle is congruent to a second angle, it is also congruent to a third angle

• If a segment is perpendicular to a second segment, it is also perpendicular to a third segment

• None of the above

What defines a median in a triangle?

• A segment from a vertex to the midpoint of the opposite side

• A segment from a vertex perpendicular to the opposite side

• A segment that divides the triangle into two equal areas

• A segment connecting the midpoints of two sides

What does a perpendicular bisector do?

• Cuts a line segment into two unequal parts at 90 degrees

• Connects the midpoints of two parallel lines

• Cuts a line segment into two equal parts not at 90 degrees

• Cuts a line segment into two equal parts at 90 degrees

Which postulate is used to prove congruence when two sides and the included angle are congruent?

• SSS postulate

• SAS postulate

• ASA postulate

• AAS postulate

What does CPCTC stand for?

• Corresponding parts of congruent triangles are congruent

• Congruent polygons of corresponding triangles are congruent

• Congruent parts of corresponding triangles are congruent

• None of the above