The statement following the "if" in a conditional which sets the standard for comparison
hypothesis
The final statement of an argument which follows the "then" portion of a conditional
conclusion
If a = b, and b = c, then a = c. Name the property shown
Transitive property
Making general observations of situations and applying them to specific situations.
Deductive Reasoning
What is the value of x?
23
If a = b, then a(c) = b(c). Name the property shown
Multiplication property
Find the next number in the sequence: 1, -1, 2, -2, 3, ___
-3
If a = b, then a - c = b - c. Name the property shown
Subtraction property
Which lines are parallel?
Line a and Line b
Lines r and s are cut by a transversal. What value of x proves r ∥ s?
43
A statement of fact derived from deductive reasoning
Theorem
For all real numbers a, a = a. Name the property shown
Reflexive property
What is the measure of ∠ABC?
108°
The thinking process whereby observation of past patterns is used to predict future outcomes
Inductive Reasoning
A statement of fact that must be accepted without proof
Postulate
A statement written in "if-then" form which establishes a relationship between two situations
conditional
Drawing conclusions from observations, examples, or patterns
Inductive Reasoning
A pattern of logical thought whereby statements of fact lead to definite, specific conclusions
Deductive reasoning
Find x, then find the measurement of both angles.
x = 30; both angles measure 114 degrees
The statement formed by interchanging the hypothesis and the conclusion of a conditional statement
Converse
What are the correct measures of angles 1 and 2?
Angle 1 = 50⁰ and Angle 2 = 130⁰
Angle Q and B are...
Corresponding Angles
Obtuse angles are greater than 90 degrees. This angle is 110 degrees, so it is obtuse.
Deductive Reasoning
Inductive Reasoning
For all real numbers, if a = b, then b can be replaced by a. Name the property shown
Substitution property
How many cookies will be on 5 plates?
15
Congruent, opposite angles formed by intersecting lines that share a common vertex
Vertical Angles
If a polygon is a regular pentagon, then the polygon has exactly five congruent angles. The polygon is a regular pentagon. What statement is a valid conclusion based on the argument?
Therefore, the polygon has exactly five congruent angles.
IF All even numbers are divisible by 2 AND 28 is even THEN 28 is divisible by 2
Deductive Reasoning
Inductive Reasoning
IF Jimmy named his first child Thing1 AND his second child Thing2 THEN He will name his 3rd child Thing3
Deductive Reasoning
Inductive Reasoning
Two angles that share a common side, a common vertex, but no common interior points
adjacent angles
Find a pattern in the sequence. Use the pattern to show the next two terms. 1, 3, 7, 15, 31, ___ , ___
63,127
If angle P measures 60 degrees, what is the measure of angle C?
120 degrees
A convincing argument that proceeds logically to show that a statement is true
proof
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