There is a rectangular farm that is three times as wide as it is length. If the length of this farm is 0.6 km (km), how many square kilometers (km2) is the farm?
0.6 3 [OP_MUL] 0.6 [OP_MUL]
var_a = 0.6
var_b = 3
var_c = var_a * var_b
var_d = 0.6
var_e = var_c * var_d
print('{:.2f}'.format(round(var_e+1e-10,2)))