How many diagonals does a PENTAGON have?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 5.
Formula for the number of diagonals in an n-sided polygon:
Number of diagonals = n(n−3) / 2
For a pentagon, n = 5:
pentagon = 5 (5 - 3)/2 = 5 × 2 / 2 = 5
Hence, a pentagon has 5 diagonals.