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OpenStudy (anonymous):
hi. can you explain this to me? a = (s/2) x cot(180/n) (area of a regular polygon)
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OpenStudy (jack1):
a = (s/2) x cot(180/n) (area of a regular polygon) Area = a Side length = s n = number of sides cot = cot (cotangent)
OpenStudy (anonymous):
okay. and how to derive that? =)
OpenStudy (jack1):
|dw:1385382629539:dw|
OpenStudy (jack1):
using triangles
OpenStudy (jack1):
|dw:1385382707151:dw|
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OpenStudy (jack1):
|dw:1385382750648:dw| |dw:1385382824158:dw|
OpenStudy (jack1):
|dw:1385382907276:dw| |dw:1385382996929:dw| with me so far?
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