what is the expression for the number of diagonals drawn from a vertex in a regular polygon of sides?

What is the expression for the number of diagonals drawn from a vertex in a regular polygon of n sides? => ( n - 4) or ( n - 3) or ( n - 2) or ( n - 1)..

Prove that the statement P(1) holds good by putting n = 1 on one side of the statement and then simplifying it to take the form of the expression on the other side..

>If any two rows or columns of a determinant are equal, then its value is zero. If each element of a row or column of a determinant multiplied by k, then its value is multiplied by k. If two rows or columns of determinant are proportional, the value of the determinant is zero. A square A = [a i j ]..

How many diagonals can be drawn from a vertex in a regular polygon of 11 sides? => 11 or 8 or 12 or 7..

What is the expression for the number of triangles formed by the diagonals drawn from a single vertex of an n sided polygon? => ( n - 2) or ( n - 1) or ( n - 3) or None of the above..

How many diagonals can be drawn from the vertex A of the regular octagon? => 5 or 2 or 3 or 4..

It has all the angles and all the sides equal. In the figure, A = B = C = D = E, and AB = BC = CD = DE = EA. Name of Polygons with reference to the number of sides: Triangles and quadrilaterals are also polygons with three side..

Name the regular polygon which has the number of sides 3 less than that of a regular heptagon. => Triangle or Rectangle or Square or Pentagon..

The measure of an exterior angle of a regular polygon is 60. Find the number of sides of a polygon. => 7 or 9 or 8 or 6..

As the number of sides of a regular polygon increases, the interior angle approaches to => 180 o or 360 o or 0 o or 90 o..