This is an obtuse triangle because one angle of it is greater than 90 degrees :)
Answer:
I think A
Step-by-step explanation:
Answer:
28
Step-by-step explanation:
18+6+4=28
Answer:
D) 
Step-by-step explanation:
Basically, if you plug in the x and y-coordinates into an equation, both sides should work out to be equal to each other:
Since
, we can eliminate choice A
Since
, we can eliminate choice B
Since
, we can eliminate choice C
Therefore, since
, then D is correct. Also, 