Deductive Reasoning
Points, lines, & Planes
Rays and Angles
Congruent Triangles
Potpourri
100

I contain 2 premises and 1 conclusion

What is a syllogism?

100

Points that a line contains.

What is collinear?

100

Less than 90 degrees.

What is an acute angle?

100

I am a part of a circle.

What is an arc?

100

I say, "if not b, then not a".

What is the contrapositive of a statement?

200

I am an "if, then" statement

What is a conditional statement?

200

for every line that contains a side of the polygon, the rest of the polygon lies on one side of the line

What is a convex polygon?

200

IF ray OB is between ray OA and ray OC, the angle AOB + angle BOC = Angle AOC

What is the Betweenness of Rays Theorem

200

This is what we are when our corresponding parts are equal.

What is congruent?

200

  I am a conclusion that is justified.

What is a valid deduction?

300

I am assumed to be not be true in this proof.

What is b?

300

The sum of the lengths of the sides of a polygon

What is the perimeter of a polygon?

300

The sum of these two angles equals 90 degrees

What are complementary angles.

300

I'm the largest side in a right angle.

What is the hypotenuse.

300

I'm a triangle with no equal sides.

What is a scalene triangle?

400

The structure that is built by means of logic

What is a deductive system?

400

a line segment that joins any two nonconsecutive vertices

What is a diagonal of a polygon?

400

I'm less than 180 degrees but more than 90 degrees.

What is an obtuse angle

400

I'm a triangle who sides are all equal

What is equilateral?

400

I am a statement that is proved by reasoning deductively from already accepted statements.

What is a theorem?

500

I am an "iff" statement.

What is a definition?

500

A point between its endpoints that divides it into two equal segments

What is the midpoint of a line segment

500

A ray that bisects an angle divides it into angles half as large as the angle

What is the Angle Bisector Theorem.

500

I'm a theorem that can be proved as a consequence of another theorem

What is a corollary?

500

I say, "if b, then a"  or "if q, then p"

What is the converse of a statement?

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