Question

1 . How many diagonal are there in an octagon? 2 . How any diagonals are there in a polygon having 12 sides?​

Answer 1

Answer:

If ther are n - sides of a convex polygons and n>3 , then it has n (n-3) diagonals .

2.

Step-by-step explanation:

1. Sides of octagon = 8

= 8 (8-3)

2

= 64 - 24

2

= 40/2 = 20

Hence, the octagon has 20 diagonals.

2. 12 (12 -3)

2

= 144 - 36

2

= 108/2 = 54

Hence, the polygon has 54 diagonals.

Answer 2

Answer:

HEYA DOST ✌✌❤❤

THIS IS YOUR ANSWER...

REFER THE ABOVE ATTACHMENT..

Step-by-step explanation:

MARK ME THE BRAINLIEST AND FOLLOW ME