Question

a polygon has 8 sides. how many diagonals can be drawn from one vertex

Answer 1

Answer:

5

Step-by-step explanation:

n(n-3)/2

where n = number of sides

this is the formula to find out the number of diagonals a polygon has.

But to find out the number of diagonals from one vertex is simply the formula is

n-3 (n=number of sides)

Answer 2

Answer:

8 sided figure is Octagon

U will see that 5 diagonals can be drawn from 1 vertex. But some diagonals repeat.

To find number of diagonals in a polygon with n sides, u can use- n (n-3)

2

here, n stands for number of sides.

By using this formula, diagonals in octagon are 20.