Difference between revisions of "Octagon"
m (i can't seem to eliminate the double root in the circumradius ..) |
m (→Regular octagons: failed to parse error) |
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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>2s^2(\sqrt{2} + 1)</math> | + | [[Area]]: <math>\displaystyle 2s^2(\sqrt{2} + 1)</math> |
[[Apothem]]: <math>\frac{s(\sqrt{2} + 1}{2}</math> | [[Apothem]]: <math>\frac{s(\sqrt{2} + 1}{2}</math> | ||
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