number of sides of polygon with 20 diagonals is
Answers
Answered by
1
Answer:
Octagon usually has 8(8-3)÷2=8×5/2=20 diagonals.
Step-by-step explanation:
An octagon has 20 diagonals, It also has 8 number of sides.
So the general formula is n(n-3)÷2=20,It is 2 dimensional shaped geometrical figure. It usually have 8 vertices,8 edges,8 angles,8sides,so when we dram the diagonal from each vertices which are 8 in number 5 diagonals can be drawn.
Similar questions