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icosagon (20-gon? brush up on ur polygonal terms) anyway 162 degrees

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16y ago

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What kind of angles are found in a regular polygon?

5


What shape has 45 degree interior angles?

There is no such regular polygon with 45 degree interior angles; the smallest interior angles in regular polygons are 60 degrees, which is found in a triangle.


What is the distance from the vertex of a regular pyramid to the midpoint of an adage of the base?

The distance from the vertex of a regular pyramid to the midpoint of an edge of the base can be found using the Pythagorean theorem. If the height of the pyramid is ( h ) and the distance from the center of the base to the midpoint of an edge is ( d ), then the distance ( D ) from the vertex to the midpoint of the edge is given by ( D = \sqrt{h^2 + d^2} ). This applies to regular pyramids where the base is a regular polygon. The specific values of ( h ) and ( d ) depend on the dimensions of the pyramid and its base.


What is the interior sum of an octagon?

The sum of the interior angles of a regular polygon is found with the formula: (n-2)180. For a regular octagon with 8 sides, the sum of the interior angles would be: (8-2)180 = 1080 degrees. This only works for regular polygons whose sides and angles are congruent.


How many degree s are in a vertical angle?

Vertical angles are not a specific angle. It is the term used to describe two angles with a common vertex and are usually made up of the same lines. They are always congruent. A picture and more explanation can be found in the related link:


Does a pentagon have two right angles?

In a regular pentagon, there are no right angles. A regular pentagon is one that has 5 equal sides and 5 equal angles. The sum of the 5 angles is 540 degrees. This is found by subtracting 2 from the number of sides and multiplying by 180 degrees. For a regular pentagon the formula would be (5 - 2) * 180 = 540. This works for all polygons. Just replace the 5 with the number of side in the polygon. A good website to visit for this is http://regentsprep.org/Regents/math/poly/LPoly1.htm. A non-regular pentagon can have right angles. Home plate on a baseball field would be an example. Original Answer Nope, it has 5 angles of 72 degrees each.


What kind of angles are found in a polygon with 9 angles?

Obtuse angles.


What is a shape with 7 sides with pictures?

A heptagon is a polygon with seven sides and angles. Pictures of a regular heptagon can be found by clicking on the "Related links" below.


What is a platonic solid and how many are there and what are their names?

A Platonic solid is the 3-D shape equivalent of a polygon: it is a three dimensional figure whose sides are congruent, regular polygons, with identical vertices. Unlike the 2-dimensional case (in which there are infinitely many polygons) there are only 5 Platonic solids: * The tetrahedron, which has 4 triangular sides. * The cube (or hexahedron), which has 6 square sides. * The octahedron, which has 8 triangular sides. * The dodecahedron, which has 12 pentagonal sides. * The icosahedron, which has 20 triangular sides. Here is how the 5 Platonic solids were found, and how we know there aren't any more: Think about the sum of the angles at a vertex (by the definition of a Platonic solid, all vertices are identical). In the plane, angles around a vertex add up to 360 degrees, but we don't want the vertex to lie flat - otherwise, we'd end up with a huge flat sheet instead of a polyhedron. We also want at least 3 polygons around a vertex, because otherwise the result will become a flat figure without volume. If the sides are triangles, we can have 3 triangles around a vertex (getting the tetrahedron), 4 triangles around a vertex (getting the octahedron), or 5 triangles around a vertex (getting the icosahedron). We can't have 6 or more, because then the sum of angles wouldn't be less than 360. If the sides are squares, we can have 3 squares around a vertex, getting the cube. 4 squares around a vertex would mean the sum of angles is 360, and 5 or more is even more impossible. Finally, we can take 3 pentagons around a vertex, getting the dodecahedron; more pentagons will give us an angle sum of over 360. We can't use any shapes with more than 6 sides, because their angles are larger and we can't even fit 3 around a vertex. Even 3 hexagons will give an angle sum of 360 degrees, and anything more than that is even worse.


What are the angles of each side of a pentagon?

Each vertex of a regular pentagon has an angle of 108 degrees. For all regular polygons, the internal angle can be found using the following formula where n equals the number of sides: (n-2) x 180 / n = internal angle of the polygon In the case of the pentagon, n = 5, and n - 2 = 5 - 2 = 3, and 3 x 180 = 540, and 540 / n = 540 / 5 = 108 degrees.


How many total degrees are there among all angles of a hexagon?

720° Each angle for a N-sided regular polygon can be found by:Interior Angle = 180° - (360°/N) ; For N=6 this is 120°. Then for the total of all angles, just multiply by 6. Note that the total of all angles will still be 720°, even for a non regular hexagon. So general formula for total of all interior angles:(Sum of interior angles) = N*180° - 360°


How do you describe the heptagon?

A heptagon is a seven-sided polygon characterized by seven vertices and seven edges. The interior angles of a heptagon sum up to 900 degrees, with each interior angle measuring approximately 128.57 degrees in a regular heptagon. Heptagons can be found in various geometric contexts and can be either regular, with all sides and angles equal, or irregular, with varying side lengths and angles.