Octagon: Difference between revisions
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Each internal [[angle]] of a [[Regular polygon | regular]] octagon measures 135 [[degree (geometry) | degrees]], so the sum of the angles is <math>1080^{\circ}</math>. | Each internal [[angle]] of a [[Regular polygon | regular]] octagon measures 135 [[degree (geometry) | degrees]], so the sum of the angles is <math>1080^{\circ}</math>. | ||
[[Area]]: <math> | [[Area]]: <math>2s^2(1 + \sqrt{2})</math> | ||
[[Apothem]]: <math>\frac{s(1+ \sqrt2 )}{2}</math> | [[Apothem]]: <math>\frac{s(1+ \sqrt2 )}{2}</math> | ||
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{{stub}} | {{stub}} | ||
[[Category:Geometry]] | |||
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