The coordinates of the given 90 degree (Counter-clockwise) about the origin from the given vertices J(-2,1), K(-1,4), L(3,4), M(3,1) will be:
The vertices are the "points" of a polygon.
19. sides=vertices
A polygon with nine vertices also has nine sides, and is therefore a "nonagon".
Fourteen. Each polygons has the same number of sides as it has vertices. Therefore, a polygon with 14 vertices must have 14 sides.
A polygon has as many vertices as it has sides and so in this case it will have 20 vertices.
{1 0} {0 -1}
The vertices are the "points" of a polygon.
The sum of the exterior angles of a polygon is 360 degrees. If it is a regular polygon, then it has 360/4 = 90 vertices and so 90 sides.
Select any one of the vertices and draw all the diagonals from that vertex. This will divide the polygon (with n sides) into n-2 triangles. Use the coordinates of the vertices of each triangle to calculate its area, and then add the areas of these triangles together.
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The answer is 324 degrees. The general formula is (n-2)*180 degrees, where n=number of sides/vertices(both are same). But this is valid only for convex polygon (every internal angle is strictly less than 180 degrees & every line segment between two nonadjacent vertices of the polygon is strictly interior to the polygon except at its endpoints)
19. sides=vertices
A nonagon has 9 vertices. It has internal angles of 140 degrees, and it is a regular polygon. The temples of Baha'i Faith are required to be nonagonal.
Twelve. The number of sides and vertices in a polygon are always the same.
A polygon has the same amount of vertices as it does sides, so it would have 7 vertices.
Every polygon that is not a triabgle (3 vertices), quadrilateral (4 vertices) or pentagon (5 vertices) has more than 5 vertices.
A polygon with nine vertices also has nine sides, and is therefore a "nonagon".