The circumcenter is the center of the circle which goes through the triangle's vertices, so the circumcenter of the triangle and the center of that circumscribed circle MUST be the same point.
The same goes for the incenter and the center of the inscribed circle, though these will not, in general, be the same point as the circumcenter.
Step-by-step explanation:
Circumference (C):

Area (A):

Answer:
5!
Step-by-step explanation:
Easy peasy
so you just add the people in collumn 'decision y' and get the answer
105+67=172
answer is 172 chose decision y
Yes, because you can simplify it to .2 which can be written as a fraction. Irrational numbers are those ones that keep going with an infinite string of numbers past the decimal.