Answer:

Step-by-step explanation:
The area of the triangle.





Answer: 1 5/9 (one and five-ninths)
Answer: Sometimes
Step-by-step explanation: Through every 2 points is a line, so it would be sometimes as a line only has a minimum of 2 points.
Answer:
5
ALL SIDES MUST BE THE SAME
Im not sure but I think could be
3x=0