Given the following shapes: a right_triangle with base 4 and height 9, a square with side 2, a right_triangle with base 2 and height 9. What is the total area of all shapes? Please round the result to the nearest integer.
<think>Right triangle with base 4 and height 9: Area = 0.5 x 4 x 9 = 18.0
Square with side 2: Area = 2^2 = 4
Right triangle with base 2 and height 9: Area = 0.5 x 2 x 9 = 9.0</think>

<answer>31</answer>