Given the following shapes: a right_triangle with base 4 and height 8, a rectangle with width 4 and height 4, a right_triangle with base 5 and height 4. What is the total area of all shapes? Please round the result to the nearest integer.
<think>Right triangle with base 4 and height 8: Area = 0.5 x 4 x 8 = 16.0
Rectangle with width 4 and height 4: Area = 4 x 4 = 16
Right triangle with base 5 and height 4: Area = 0.5 x 5 x 4 = 10.0</think>

<answer>42</answer>