Formula: 0.5*(n2-3n) and n is the number of sides
0.5*(462-138) = 989 diagonals
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many triangles does a regular 46-gon have
To find the sum of the angles for any polygon just use this formula: (n-2) times 180 where n is the number of sides in the polygon. So for a 48-gon it would be : (48 - 2) times 180 46 times 180 = 8280 degrees
The answer is 47+46+45+...+1 To work that out quickly, we do (47*48)/2, which is 1128.
46 feet of fence. Add all the sides together.
The answer depends on 46 what and 60 what. It should be obvious to you that an area of 46 miles x 60 miles will differ from that of 46 millimetres x 60 millimetres!