Question

n coplanar straight lines meet at a point. The angles between consecutive lines are x
o
,2x
o
,....nx
o
. The value of n, in order that the minimum angle be 24
o
, is​

Answer 1

Answer:

x

o

,2x

o

,....nx

o

=360

⇒x

o

(1+2+...+n)=360

Given x=36

o

⇒

2

n(n+1)

×36

o

=360

o

⇒

2

n(n+1)

=

36

360

⇒n=4