The length of the base of the trapezoid is 25 centimeters (cm), and the length of the top side is (a) centimeters (cm). If the distance between the two sides is 13 centimeters (cm), and the area of this trapezoid is 286 square centimeters (cm2), what is the correct number for (a)?
286 13 [OP_DIV] 2 [OP_MUL] 25 [OP_SUB]
var_a = 286
var_b = 13
var_c = var_a / var_b
var_d = 2
var_e = var_c * var_d
var_f = 25
var_g = var_e - var_f
print(int(var_g))