Given the following shapes: a square with side 1, a right_triangle with base 3 and height 5, a trapezoid with bases 3 and 8 and height 2. What is the total area of all shapes? Please round the result to the nearest integer.
<think>Square with side 1: Area = 1^2 = 1
Right triangle with base 3 and height 5: Area = 0.5 x 3 x 5 = 7.5
Trapezoid with bases 3, 8 and height 2: Area = 0.5 x (3 + 8) x 2 = 11.0</think>

<answer>20</answer>