Question

complete the table below by filling up the blank​

Answer 1

Answer:

8 5 6 1080

9 6 7 1260

10 7 8 1440

11 8 9 1620

Answer 2

Given :  Different Regular polygons of sides 8 , 9 , 10   __  12

Number of diagonals from a fixed vertex  

Number of Triangle formed by the diagonal from a fixed point

Sum of interior angles

To Find :  Missing values

Solution:

Regular  Polygon

Sides  = n   Then  Number of diagonals from a fixed vertex   = n - 3

Number of Triangle formed by the diagonal from a fixed point  = n - 2

Sum of interior angles  = (n - 2 ) * 180 °

n              n-3                 n-2                         (n - 2 ) * 180 °

Sides     Diagonal      Triangles from      sum  of  angles

              from fixed    fixed diagonal          

8                  5                     6                      1080°          

9                  6                     7                      1260°        

10                 7                     8                      1440°        

11                  8                     9                      1620°        

12                 9                     10                     1800°          

     

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