Across which line of reflection can regular polygon ABCDEFG reflect to map onto itself?

help please!!! medal and fan

Question

Across which line of reflection can regular polygon ABCDEFG reflect to map onto itself?

help please!!! medal and fan

anonymous · Answer

attachment

mathstudent55 · Answer

Think of folding this figure in half and making one side exactly match the other side.

anonymous · Answer

C?

mathstudent55 · Answer

Draw each line that each choice tells you. Which of those divides the figure into to congruent halves?

mathstudent55 · Answer

C is not it.

mathstudent55 · Answer

You have a regular heptagon.
This is more or less the figure you have.
|dw:1404244922290:dw|

mathstudent55 · Answer

The line represents choice C.
If you fold this figure along line C, the lower part is larger than the upper part, so this can't be the answer.
|dw:1404245026603:dw|

anonymous · Answer

perpendicular bisector of a and b then?

mathstudent55 · Answer

Correct.
See figure below, where both sides of the line are congruent.
|dw:1404245147964:dw|

anonymous · Answer

ooo thanks a lot you damn good a this

mathstudent55 · Answer

Thanks

anonymous · Answer

:)