Fiona is drawing polygons on a computer. She wants to map a regular 9-sided polygon back onto itself using a reflection. Which set of lines can Fiona choose from for her line of reflection?
# will fan and medal

Question

Fiona is drawing polygons on a computer. She wants to map a regular 9-sided polygon back onto itself using a reflection. Which set of lines can Fiona choose from for her line of reflection?
# will fan and medal

anonymous · Answer

(A) any line passing through the center of the polygon




(B)any perpendicular bisector of one of the sides




(C)any line joining the midpoints of any two sides




(D))any line parallel to a side of the polygon

anonymous · Answer

@welshfella @Wendy.Ivette11714 I will medal

welshfella · Answer

you need to pick a line that will give the same image (laterally displaced) on each side of the line.

anonymous · Answer

what does laterally displaced mean??

welshfella · Answer

like if it was a pentagon you would pick this line

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anonymous · Answer

c

welshfella · Answer

a point on left  one half corresponds to a point on right of the other

anonymous · Answer

so one one side it will count as one half????

welshfella · Answer

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welshfella · Answer

those 2 points are laterally dispslaced
Like when you look in a mirror  - your right appears to be on the left of your image.

welshfella · Answer

*  your right eye

anonymous · Answer

okay so which of the following will fit this discription

anonymous · Answer

(A0 (B) (C) (D))

welshfella · Answer

well a pentagon and nonagram both have odd numbers of sides
check out the pentagon

anonymous · Answer

okay got it.. thanks!!! really appreciate medall rewarddeddd!!!

welshfella · Answer

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welshfella · Answer

perpendicular bisector of any side