Question

12.
if j is the centroid of triangle def, dh=51, gf=60, and el=57, find each missing measure.
ji =

Explanation:

Step1: Recall centroid segment ratio

The centroid divides a median into a ratio of $2:1$, where the segment from vertex to centroid is twice the segment from centroid to side. So $JI = \frac{1}{3}EI$.

Step2: Substitute given value

Substitute $EI=57$ into the formula.
$JI = \frac{1}{3} \times 57$

Answer:

19