Use the pyramid and the given information to find the length of VM.
Given:
M is the midpoint of the pyramid's square base.
The square base ABCD has side lengths of 5 cm.
Lengths VA, VB, VC, and VD are each 8 cm.
A) 5.3 cm
B) 6.3 cm
C) 7.2 cm
D) 8.5 cm