Search SchoolNGR

Friday, 06 March 2026
Register . Login

An (n - 2)2 sided figure has n diagonals. Find the number n diagonals for 25-sided figure

An (n - 2)2 sided figure has n diagonals. Find the number n diagonals for 25-sided figure
Take Free Practice Test On 2026 JAMB UTME, Post UTME, WAEC SSCE, GCE, NECO SSCE
  • A 7
  • B 8
  • C 9
  • D 10
Correct Answer: Option A
Explanation:
(n - 2)2 = 25
n - 2 = 25 = 5
n = 5 + 2
= 7

Share question on: