Answer:
If you mean by 1*2*3=6
Step-by-step explanation:
Perpendicular bisectors help you find the centroid; altitudes help find the orthocenter. This is all in a triangle.
You could use a calculator.. or if it is already in distributive property then just add it up
3 and 1/3 times 2.5 = 8.3(repeating 3) feet