18+ How Many Triangles Are In An Octagon? Pics

18+ How Many Triangles Are In An Octagon?
Pics. Eight triangles of equal size form a regular octagon. How many triangles make up an octagon?

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How many diagonals does a hexagon have? Can anyone give me some insight ? The simple drawing shows a simple sketch and asks users to calculate how many triangles are featured.

The interior angles of a triangle add up to 180°.

Please refer to poorly drawn picture to see the division of the octagon. Assuming that you move everything if a circle is one, then the premise residing over this question is not in regard to the number of sides the octagon has but how it relates to the circle. And for the square they add up to 360°. 90° + 60° + 30° = 180°.

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So a octagon which has 8 sides, contains 6 triangles.

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But there is a gap at 2.

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Typically, 0 a regular octagon has 0 right angles—all its vertices are 135˚.

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The interior angles of a triangle add up to 180°.

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It works for this triangle.

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Since triangle is 3, square is 4, pentagon is 5, hexagon is 6, septagon is 7 and octagon is 8.

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And how many if no side of the polygon is to be a side of any triangle ?

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There are 8 points in a plane out of which 4 are collinear.

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For example, an equilateral triangle has three equal angles (and three equal sides).