Answer: approximately 33.59 square cm
=========================================
Work Shown:
P = area of equilateral triangle with side length 's'
P = (sqrt(3)/4)*s^2
P = (sqrt(3)/4)*14^2
P = 49*sqrt(3)
Q = area of circle with radius r
Q = pi*r^2
Q = pi*4.04^2
Q = 16.3216pi
S = area of shaded region
S = P - Q
S = 49*sqrt(3) - 16.3216pi
S = 33.5946709160439
S = 33.59