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maddo36
01.11.2020 •
Mathematics
How to do this question plz
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Ответ:
Step-by-step explanation:
Add two horizontal segments to divide the figure into three:
Extend ED and add segment from the point F to BC.Now we have two trapezoids and one triangle.
Area of triangle:
A = 1/2*(11 - 6)*(0 - (-3)) = 1/2(5)(3) = 7.5Area of trapezoids:
A = 1/2[(11 - 4 + 11)*(-3 - (-6)) + (11 - 5 + 11)*(-6 - (-8))] = 1/2(18*3 + 17*2) = 44Total area:
7.5 + 44 = 51.5