Answer:
See below in bold.
Step-by-step explanation:
FA, CD and BE are the medians of the triangle.
So AE + EC
that is x = 2x - 4
giving x = 4.
Also the sides length 10 and 4y-2 are in the ratio 2:1 (property of intersecting medians).
10 = 2(4y - 2)
8y - 4 = 10
8y = 14
y = 14/8
y = 1.75.
