Geometry

Question Analysis:
This question involves identifying an example of deductive reasoning.
The main focus is on recognizing the structure of deductive reasoning, which starts with a general rule and applies it to a specific case to reach a logically certain conclusion.

Key Concept Explanation:
Deductive Reasoning: Starts with a general rule (premise) and applies it to a specific case to reach a logically certain conclusion.
Inductive Reasoning: Starts with specific observations and makes a generalization that is probable but not certain.

Step-by-Step Solution:
Analyze each option to determine if it represents deductive or inductive reasoning:

A) This is inductive reasoning because it starts with specific observations (the past five winter seasons have been colder than average) and generalizes to a conclusion (this winter will also be cold).
This is not logically certain because it is based on limited observations.

B) This is inductive reasoning because it starts with specific observations (multiple tests of a chemical reaction) and generalizes to a conclusion (it will always produce the same result).
This is not logically certain because it is based on limited observations.

C) This is deductive reasoning because:
Premise 1: All isosceles triangles have two equal sides. (General...