half circle 's perimeter =half of perimeter of circle + diameter
= pi* (50/2)+50
now calculate urself
2006-12-06 10:32:57
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answer #1
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answered by niel_alinda 3
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The perimeter of a half circle would be the "round" part (which is half the circumference) plus the straight part.
The circumference of the full circle is calculated using the formula
C = pi*d = 50pi
Therefore, half the circle would be
1/2 C = 1/2 50pi = 25pi
The straight part is just, simply, the diameter. So your total perimeter P is
P = (round part) + (straight part)
P = 25pi + 50
2006-12-06 10:29:46
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answer #2
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answered by Puggy 7
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Perimeter of a circle =π⋅d
so P=50⋅π⋅m ≈ 157m
2006-12-06 10:39:03
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answer #3
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answered by rm 3
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Multiply by pi, which would give you the circumference of the whole circle. Since you have only a half circle, divide the result by 2.
2006-12-06 10:28:53
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answer #4
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answered by Anonymous
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perimeter of half circl is pir+d
3.14*25+50
=128.5m
2006-12-06 10:28:58
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answer #5
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answered by raj 7
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