Answer:
6(3)-3
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
I saw em in other ones
A right triangle has at least one angle that is a right angle (90 degrees)
50,57,79 none are 90 degrees
The triangle is not a right triangle
It would be 6/7 if im not mistaken.

that simply means, is a vertical line, check the picture below.