45+ Regular Octagon Interior Angle Background
45+ Regular Octagon Interior Angle Background. Sum of the interior angles of an octagon: The interior angle of a regular octagon is 135° and the external 45°.
If the angles are all equal and all the sides are equal length it is a regular polygon.
If you see a word that begins with oct, it a regular octagon has eight equal sides and eight equal interior angles. A regular polygon is a polygon that has equal sides and equal angles. First, let's see what the total angle of all the interior corners is of these pol. Thus, for an octagon cphill hse done it very logically, he just forgot to mention that 2 of his isoscles triangle 'leg' angles adds up to one internal ocatgon angels.
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