ExamPlay Light Logo
Conectare

JAMB - Mathematics (1987 - No. 22)

An (n - 2)2 sided figure has n diagonals. Find the number n diagonals for 25-sided figure
7
8
9
10

Explicaţie

(n - 2)2 = 25

n - 2 = 25 = 5

n = 5 + 2

= 7

Comentarii (0)

Publicitate