Answer:
1.Geometric proofs can be written in one of two ways: two columns, or a paragraph. A paragraph proof is only a two-column proof written in sentences. ... A two-column geometric proof consists of a list of statements, and the reasons that we know those statements are true.
2.ray AB is not same as ray BA as ray AB has the starting point A and ray BA has B as the starting point.
3.∠ABC refers to an angle, a geometric object.
m∠ABC refers to the measure of ∠ABC which is a real number describing how “open” the angle is.
Step-by-step explanation:
