engineering mathematics MCQ #3979

The number of diagonals in a polygon with 8 sides is

engineering mathematics MCQ #3979

  1. Question 1

    Q1. The number of diagonals in a polygon with 8 sides is

    • A) 8C2 - 8
    • B) 8 * (8 - 3) / 2
    • C) Both A and B
    • D) 8P2 - 8

    Answer: Both A and B

    Explanation: Total line segments between 8 vertices = 8C2, subtract the 8 sides to get diagonals, or use the formula n(n-3)/2.