Angles
Segments
Postulates and Theorems
Logic
and/or
100

These angles share a common ray.

What are adjacent angles?

100

This goes on forever in both directions.

What is a line?

100

Parallel lines never meet.

What is the parallel postulate?

100

Reasoning gone wrong commits this.

What is a fallacy?

100

A Roman general and/or Mark Twain's home town on the Mississippi.

What is Hannibal?

200

Formed by intersecting lines, these angles across from one another are always congruent.

What are vertical angles?

200

This segment has a starting point but no end.

What is a ray?

200

Two adjacent angles form an angle that is the sum of the angles given.

What is the angle addition postulate?

200

NO=NO is an example.

What is the reflexive property of addition?

200

The largest feline and/or the ESHS mascot.

What is a tiger?

300

These adjacent angles have a vertex on a straight line.

What are a linear pair of angles?

300

Segments, paradoxically, are made up of these.

What are points?

300
The letters "iff" stand for this phrase.

What is "if and only if?"

300

Equals added to equals are equal.

What is the addition property of equality?

300

A sandwich shop and/or an underground train.

What is (a) subway?

400

These two angles sum up to 90 degrees.

What are complementary angles?

400

Go halfway along a line segment, and you reach this.

What is the midpoint?

400

Geometric objects having the same shape and size are this.

What is congruent?

400

An if...then... statement is also known as this.

What is a conditional statement?

400

Evidence of guilt or innocence or establishing a geometric conclusion.

What is proof?

500

Two lines that intersect in a 90 degree angle are known as this.

What is perpendicular?

500

Segments are said to have length but not this.

What is breadth?

500

This theorem is used to find the length of a line segment or the distance between points on a coordinate plane.

What is the Pythagorean theorem?

500

If p then q.

not q

Therefore, not p

What is the law of contrapositive?

500

A linear pair and/or a straight angle.

What equals 180 degrees?