1. m is the midpoint of ln and o is the midpoint of np. solve for x, given mo = 2x +6 and lp = 8x – 20.2. in △bec, f is the centroid and ac = 12.  find a and f and fc. in △bec, f is the centroid and ac = 12.  find a and f and fc.3. da bisects angle bac.  find dc.  4. abc has the vertices a(0, -1), b( 4, -1) and c (1, -4).  sketch a graph of apc and use it to find the orthocenter of abc.  then list the steps you took to find the orthocenter, including any necessary points or slopes you had to derive.    5. what are the properties of the following: a. circumcenter: b. incenter: c. centroid: d. orthocenter: