Question

In AABC,D is the midpoint of BC. E is the foot
of the perpendicular from A to BC (lie on
BC), and F is the foot of the perpendicular
from D to AC. Given that BE = 5, EC = 9, and the
area of triangle ABC is 84. Then the value of
EF is
A
12
B 5 E
2 D
7
С​

Answer 1

Step-by-step explanation:

sorry I have tried but not able to solve it.