Answer:
10 divided by 3 = 3.33 for each side of the triangle.
2 x 6 = 12(area of two triangles)
10(height) x 3.33(area of one side of the triangle) x 3(three rectangles) = 99.9
Add given areas:
99.9 + 12 = 111.9 rounded = 112 cm^2
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