23 of them because total angles are (25-2)*180 = 4140 degrees
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There are any number greater than 22. Having divided the polygon into triangles it is easy to increase the number by simply dividing one triangle into two.
The method of finding the sum of the interior angles of a polygon is by multiplying the (number of sides)-2 by 180, so the sum of the interior angle measures in a 25-sided polygon would be 23*180, or 4140 degrees.
Well, honey, a 25 sided polygon is called a "icosikaihenagon." Yes, it's a mouthful, just like your nosy neighbor's gossip. So next time you need to impress someone with your geometry knowledge, just drop that bombshell of a word and watch them squirm.
Find out the number of matchsticks that the learners would need to build 40 triangles
A 25-sided shape would have no parallel sides !
Name of all polygons until 12 sides. Move the mouse over the shapes to discover their properties. Triangle Square Pentagon Hexagon Heptagon Octagon Nonagon Decagon Hendecagon Dodecagon These shapes are known as regular polygons. A polygon is a many sided shape with straight sides. To be a regular polygon all the sides and angles must be the same.