There is a regular tetrahedron with a side length of 7 centimeters (cm). What is the surface area of this tetrahedron in square centimeters (cm2)?
3 1/2 [OP_POW] 7 2 [OP_POW] [OP_MUL]
var_a = 3
var_b = 0.5
var_c = var_a ** var_b
var_d = 7
var_e = 2
var_f = var_d ** var_e
var_g = var_c * var_f
print('{:.2f}'.format(round(var_g+1e-10,2)))