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Name |
Area of Sector |
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Equation |
A
=
1
2
r
s
=
1
2
r
2
θ
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Definition of terms
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A = area, r = radius, s = arc length, θ |
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Comments |
A sector of a circle is simply the area between two radii an angle θ apart. The area of a sector is equal to half the radius times the arc length s . Since s = r θ, this is equal to
1
2
r
2
θ
. |
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References |
CRC Standard Mathematical Tables , 26th edition, CRC, 1981 |
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