Question

Name the kind or kinds of symmetry the following figure has: point, line, plane, or none. (Select all that apply.)

point
line
plane
none

Answer 1

B
C
H
3
O

Answer 2

@mathmate

Answer 3

@hhelpplzzzz did you post a figure?

Answer 4

the figures are

B
C
H
3
O

Answer 5

@mathmate

Answer 6

Oh, the letters are the figures, I beg your pardon!

Answer 7

Can you get started by see a few pictures here?
http://www.mathsisfun.com/geometry/symmetry.html

Answer 8

So B is line and point, right?

Answer 9

B is line.
For something to be point, you need to get back the same shape without rotating it 360 degrees. B needs to rotate 360 before it comes back in position. S needs only 180, so S has point symmetry, but not line symmetry.

Answer 10

oh ok thnx:)

Answer 11

is C none?

Answer 12

C has a (horizontal) line symmetry. Chop it in the middle and you get two equal pieces.

Answer 13

is line the only one?

Answer 14

Let's see.
Line... we know yes.
point... no
plane - in my opinion, it only applies to solids.
none - not if we found line.
So yes, only line.

Answer 15

thnx

Answer 16

what about H?

Answer 17

What do you think for H?
line?
point?
plane?
none?

Answer 18

line and maybe point?

Answer 19

I just checked, and it turns out that plane symmetry includes line and point.
So whenever you have line or point, you have plane.

Answer 20

both line and plane or only one?

Answer 21

both line and plane, and point (for H).
You only need to turn 180 to get back H, so point, right?

Answer 22

thanks

Answer 23

is 3 none?

Answer 24

@mathmate

Answer 25

Think of a horizontal line cutting it in two equal pieces. If it is possible, then ...