Answer: 20
Step-by-step explanation:
Yeah the tickets is over-priced. Sure the question is not missing ?
It is true because if a is perpendicular to b and b is perpendicular to c therefore a has to be perpendicular to c also they said that all three lines are coplanar therefore the statement must be true
I hope this helped you out :)
Answer the first is opposite and other is same
Step-by-step explanation: