Answer:
( 4, 1 )
Step-by-step explanation:
midpoint formula: (x1 + x2/ 2, y1 + y2/ 2)
(9-1/ 2, -6+8/ 2) -> (4,1)
9514 1404 393
(c) 162 cm
The centroid divides a median into parts with the ratio 1:2, so RL:LD = 1:2. Then RL:RD = 1:(1+2), and RD = 3RL.
RD = 3·54 cm
RD = 162 cm
the answer is 4.
