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# Chapter 8 vocab

### Williams 7c

TermDefinition
Converse If you reverse parts of the Pythagorean theorem, you have performed its converse.
Deductive reasoning Using facts, rules, definitions, or laws to make conjectures from given situations.
Distance formula The distance d between two points with coordinates (x1-y1) and (x2-y2) is given by finding the square root of (x2-x1)^2 + (y2-y1)^2 =d
Formal proof Statements and reasons organized into two columns.
Hypotenuse The side opposite the right angle. It is the longest side of the triangle.
Inductive reasoning The process of making a conjecture after observing several examples.
Informal proof A paragraph proof.
Legs The sides that form a right angle.
Paragraph Proof Writing a paragraph to explain why a conjecture is true.
A Proof A logical argument where each statement is justified with a reason.
Pythagorean theorem Describes the relationship between the lengths of the legs and the hypotenuse for any right angle.
Theorem Once a statement or conjecture has been proven it is called a theorem.
Two-Column proof Formal proof organized into two columns.Each step is called a statement.
Created by: Yasmin Lopez