Answer:
segment BC ≅ segment BC (reflexive property of congruence)
Step-by-step explanation:
Reflexive property of congruence states that an angle, line segment, or shape is always congruent to itself.
Before statement 6, you need to prove that side BC is the same for both triangles
It can be solved by factoring or taking the root of both sides.
x= 2 radical 3. and -2 radical 3
The answer is B. Mark as brainliest if this helped you out :). (It would be 66 inches long)