jason7357
jason7357
19-05-2020
Mathematics
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mrohugcc
mrohugcc
19-05-2020
Trapezium area h(a+b)/2
Circle area pi*r^2
50(20 + 35)/2 = 1375
pi * 12.5^2 = 156.25pi
Divide by two because that’s a semicircle.
78.125pi also 625*pi/8
1375 - 78.125pi = 1129.563mm^2
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