Answer:
EF = 9.2
Explanation:
Theorem:
The segment that has as endpoints the midpoints of two sides of a triangle is half the length of and parallel to the third side.
For triangle GEF, the endpoints of segment ZY are midpoints of sides GE and GF, so segment ZY is half the length of segment EF.
EF = 2ZY
EF = 2(4.6)
EF = 9.2