Given the following shapes: a trapezoid with bases 1 and 7 and height 1, a trapezoid with bases 2 and 4 and height 1, a right_triangle with base 7 and height 1, a square with side 1. What is the total area of all shapes? Please round the result to the nearest integer.
<think>Trapezoid with bases 1, 7 and height 1: Area = 0.5 x (1 + 7) x 1 = 4.0
Trapezoid with bases 2, 4 and height 1: Area = 0.5 x (2 + 4) x 1 = 3.0
Right triangle with base 7 and height 1: Area = 0.5 x 7 x 1 = 3.5
Square with side 1: Area = 1^2 = 1</think>

<answer>12</answer>