bettyboo
bettyboo
18-05-2015
Mathematics
contestada
What is the area of a semi circle
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AL2006
AL2006
18-05-2015
The area of a whole circle is (pi) (radius²) .
So the area of half of it would be
(1/2) (pi) (radius²) .
If you don't know the radius, then you can use the formula
Area = (1/8) (pi) (diameter²) .
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vuvuong003
vuvuong003
18-05-2015
You just find the area of a circle then divide it by 2
Area = Radius × Radius × [tex] \frac{22}{7} [/tex] (or pi)
Then divide your area by 2 and you get the semi-circle's area.
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