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octagon - An eight (8) sided polygon
Formula: P = 8sJanice says that the sum of the measures of the interior angles of an octagon is 900. Is Janice cor

Janice says that the sum of the measures of the interior angles of an octagon is 900. Is Janice correct? Why or why not? She's [B]incorrect. [/B] The interior angle sum for a polygon is found with this formula: Interior Angle Sum = (sides - 2) x 180 Since an octagon has 8 sides, we have: Interior Angle Sum = (8 - 2) x 180 Interior Angle Sum = 6 x 180 Interior Angle sum = 1080

Octagon

Free Octagon Calculator - Calculate side, area, and perimeter of an octagon based on inputs

Octagonal Number

Free Octagonal Number Calculator - This calculator determines the nth octagonal number

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