Question

How many lines of symmetry are found in a regular polygon with 40 sides?

Answer 1

There's two ways you can do this. The easy way or the hard way. The hard way is to draw it. The easy way is to figure out a pattern using smaller shapes and see what the pattern is then extend it to 40. So make several regular polygons like an equilateral triangle, a square, a pentagon, and a hexagon and see if you can figure out what the pattern is.

Answer 2

My guess is 40, but I'm not certain.

Answer 3

ill use the hard way :P

Answer 4

http://www.learner.org/courses/learningmath/geometry/images/session7/7a2_solution.gif

Answer 5

my guess is 40 too

Answer 6

40 the answer

Answer 7

This isn't a guessing question. I'm not going to help someone who won't help themselves. Good "luck".

Answer 8

u r right @ikram it is 40 only.

Answer 9

@Kainui lol xD

Answer 10

:)

Answer 11

@Kainui, my"guess" was more of an educated guess. It was based on the knowledge of what rational said. I knew that those shapes had that many lines of symmetry, so that's how I came up with 40.

Answer 12

educated guesses/visualizing is okay in geometry
proof can be tricky here however

Answer 13

the hard way xD

Answer 14

Yup, I counted 40 lines. :)

Answer 15

huh well ermm lol
it gave me an idea how that we can make infinitly many line to make the circle symetric
intresteng...

Answer 16

ing

Answer 17

:)

Answer 18

@shereenkhan ;-)

Answer 19

;D @ikram

Answer 20

thats not even me lol
u forget the 002p part

Answer 21

lol you're right

Answer 22

Orange post another intresting question :3

Answer 23

but here no other question.

Answer 24

It's open on a separate question

Answer 25

kk