definition of perpendicular lines
the theorems and postulates used in the proof
Since you didn't include the statements in your question there is no way for us to know
A statement that is subjective, ambiguous, or based on opinion cannot be used to explain the steps of a proof. In a mathematical proof, each step must be based on objective facts, definitions, axioms, or previously proven theorems in order to ensure the validity and rigor of the argument. Statements that rely on personal beliefs, feelings, or interpretations are not suitable for constructing a logical proof.
The answer cannot be "a proof" since that can equally be used to show that a statement must be false.
substitution property of equality
definition of congruent angles
definition of perpendicular lines
alternate exterior angles theorem
vertical angles theorem
triangle sum theorem
Corollary.Theorem.Definition.Postulate.
Well the scientific proof provides that we americans can be awesome. Thank you. xD
Corollary.Theorem.Definition.Postulate.
Theorems, definitions, corollaries, and postulates
In a formal proof, logical reasoning and axioms are used to reach a conclusion. By following the rules of logic and making valid deductions based on the given information, a proof can demonstrate the truth of a statement. Furthermore, the structure of the proof, typically composed of statements and reasons, helps to show the validity of the conclusion.
The following is the answer.