It would be D. If you add all the numbers (-18, -81, 144) and divide it by 3 then you would get -81. I hope I helped!
??? Do you mean 17 divided by 2 cuz that's 8.5
Answer:
3/40
Step-by-step explanation:
Multiply 1/5 * 3/8
Where the angle bisectors intersect determines the center of the incircle.
Where the side perpendicular bisectors intersect determines the center of the center of the circumcircle. From these definitions, you should be able to determine the points you want.
