CUET Preparation Today
CUET
General Test
Quantitative Reasoning
Geometry
If a polygon has 8 sides, then the number of diagonals it has is:
8
16
20
24
The formula to find the number of diagonals is: D = n (n – 3)/2, where n stands for the number of sides
According to the question, n= 8 D = 8 ( 8 – 3)/2 D = 8 (5)/2 D = 20