Answer:
D. on edge
Step-by-step explanation:
True, true, false, true, false
First, set these expressions equal in an equation. solve for x, then multiply x by 3 because there are 3 sides. the perimeter is 12
Answer:
D is correct.
Step-by-step explanation:



x - 2 = 0 or x + 4 = 0
x = 2 or x = -4
So we have (2, -4) and (-4, 8). D is correct.