Given the following shapes: a right_triangle with base 4 and height 7, a right_triangle with base 2 and height 9, a trapezoid with bases 2 and 7 and height 6, a right_triangle with base 4 and height 1. What is the total area of all shapes? Please round the result to the nearest integer.
<think>Right triangle with base 4 and height 7: Area = 0.5 x 4 x 7 = 14.0
Right triangle with base 2 and height 9: Area = 0.5 x 2 x 9 = 9.0
Trapezoid with bases 2, 7 and height 6: Area = 0.5 x (2 + 7) x 6 = 27.0
Right triangle with base 4 and height 1: Area = 0.5 x 4 x 1 = 2.0</think>

<answer>52</answer>