Question

Select the proper reason if this

statement is provided as a fact at the
beginning of a proof.
Statement
Reason
L2 and Z3 are vertical angles [?]
A. Given
B. Postulate
C. Truth

Answer 1

A. Given

Explanation:

The statement is provided as a fact at the beginning of a proof. This means that the statement is given.

Option B (postulates) are used to prove, for example, that some angles or shapes are congruent, or that two triangles are similar, etc.

Option C (truth) is never used in a proof.