Given the following shapes: a right_triangle with base 6 and height 6, a right_triangle with base 1 and height 7, a right_triangle with base 3 and height 5. What is the total area of all shapes? Please round the result to the nearest integer.
<think>Right triangle with base 6 and height 6: Area = 0.5 x 6 x 6 = 18.0
Right triangle with base 1 and height 7: Area = 0.5 x 1 x 7 = 3.5
Right triangle with base 3 and height 5: Area = 0.5 x 3 x 5 = 7.5</think>

<answer>29</answer>