here is a net of right triangles and rectangles all measurements are given in centimeters.
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Problem
Solution
For this case we we can find the area on this way:
[tex]A=\frac{5\cdot4}{2}+6\cdot4+6\cdot5+6\cdot3+\frac{4\cdot3}{2}[/tex]And solving we got:
[tex]A=10+24+30+18+6=88[/tex]The area for this case is 88 unit^2