Basics
logic and reason
triangles
Postulates and definitions
Theorems
100

This basic shape has no dimensions 

what is a point?

100

if p then q

p

therefore q

What is the law of detachment?

100

this triangle has a right angle

What is a right triangle?

100

This postulate says a line segment is made up of the sum of its smaller segments.

Segment Addition Postulate

100

We can say vertical angles are equal because of this theorem.

Vertical Angle Theorem

200
if three or more points are on the same line .

What is colinear?

200

if p then q

if q then  p

What is the converse?

200

This triangle has no congruent sides.

What is a scalene triangle?

200

This postulate states that two adjacent angles add to the the larger angle they form.

What is angle addition postulate?

200

We can prove two triangles are congruent if they have a congruent side between two congruent angles.

What is the Angle Side Angle theorem?

300

An angle pair that is supplementary and adjacent.

What is a linear pair?

300

if 3x = 6 then x = 2

 what is the division property of equality?

300

this triangle has two equal sides

what is an isosceles triangle?

300

This postulate states two triangles are congruent if they have a congruent angle formed by two congruent sides.

What is the side angle side postulate?

300

the sum of the interior angles of a triangle is 180 degree.

What is the triangle sum theorem?

400

if a = b and b = c then a = c is an example of this property of equality.

What is transitive property?

400

If it is raining then I wear a coat.

I am wearing a coat.


What is an invalid attempt at detachment?

400

a triangle that has an obtuse angle and two equal sides.

What is an obtuse isosceles triangle?

400

a ray or segment that divides an angle into two equal parts.

What is an angle bisector?

400

If a triangle has two congruent sides then the  angles opposite those sides are congruent.

What is the base angle theorem?

500

The ratio of actual outcomes to the total number of possible outcomes.

What is probability?

500

This logic structure consists of 3 or more conditional statements.

What is a syllogism?

500

A triangle with sides of 10 and 15 inches, this is the range of the length of the this side.

What is the side is between 25 and 5 inches?

500

if M is the midpoint of AB then 

What is AM = MB?

500

the converse of the base angle theorem

What is the sides of a triangle are congruent if the base angles are congruent?