BUILDING BLOCKS OF GEOMETRY
REASONING
Algebra Fun
TYPES OF PROOFS
GEOMETRY TERMS
100

A precise location or place on a plane that is usually represented by a dot.

What is a point?

100

A statement that we take to be automatically true. 

What is a postulate?

100
What is 2x+3 when x=5

What is 18

100

There are this many types of proofs

What is 3? 

100

Visual-spatial branch of math

What is geometry?

200

A straight path that continues in both directions forever. 

What is a line?

200

An example that shows a statement or conjecture is false. 

What is a counter example?

200

What is a variable? 

It is a placeholder that is represented with a symbol or letter. 

200

This type of proof uses a table and places statements in the first column and reasoning in the second column 

What is two column?

200

Lines that are two intersecting lines that form a 90 degree angle

What is perpendicular? 

300

A flat two-dimensional object that has no thickness and extends forever.

What is a plane?

300

A statement that is based on inductive reasoning but has not yet been shown to be true. 

What is conjecture?

300

What is a Coefficient?  

A numerical or constant quantity placed before and multiplying the variable in an algebraic expression (e.g. 4 in 4x y).

300

This type of proof is a concept map where statements are placed in the boxes and the reason for each statement are placed under the box. 

What is a flow chart?

300

The point where rays meet.

What is the vertex?

400

A portion of a line located between two points.

What is a line segment?

400

Reasoning that reaches conclusions based on a pattern. 

What is inductive?

400

4x2+3x-2 when x=2

20

400

In geometry we use this reasoning to prove statements are true

What is deductive reasoning? 

400

Two lines that are on the same plane but do not intersect?

What are parallel lines?

500

A piece of a line that starts at one point and extends infinitely on one direction. 

What is a ray?

500

A type of reasoning using given and previously known facts to reach a logical conclusion.

DEDUCTIVE

500

What is the y-intercept for the following line? 

y=3x-4

(0,-4)
500

This type of proof uses statements and their reasoning is written together in logical order in a written form. 

What is a paragraph?
500

Formed by two rays with the same endpoint.

What is an angle?

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