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Mathematics 8 Online
OpenStudy (anonymous):

heelppp! A. How many lines of symmetry does a regular polygon have? B. Give a rule for the number of lines of symmetry in a regular polygon. In two or more complete sentences, justify the rule.

OpenStudy (anonymous):

what schoo/?

OpenStudy (anonymous):

its from odysseyware

OpenStudy (anonymous):

Well, a polygon means for sides

OpenStudy (anonymous):

*four

OpenStudy (anonymous):

So since it's a regular polygon, there'd most likely be 2 lines of symmetry.

OpenStudy (welshfella):

it depends on how many sides the regular polygon has for example a square has 4 lines of symmetry |dw:1431015491010:dw|

OpenStudy (anonymous):

the question doesn't tell me how many sides thats why im confused

OpenStudy (anonymous):

I was thinking along the lines of a rectangle.

OpenStudy (welshfella):

yes i appreciate that

OpenStudy (welshfella):

a regular pentagon |dw:1431015611794:dw|

OpenStudy (welshfella):

I should now this but my memory is failing me a bit perhaps the lines of symmetry = number of sides seems to be the case

OpenStudy (welshfella):

as you see a regular pentagon has 5 lines of symmetry

OpenStudy (welshfella):

hexagon |dw:1431015839674:dw|

OpenStudy (welshfella):

thats 6 lines of symmetry yea that's it

OpenStudy (welshfella):

no. of sides = no. lines of symmetry

OpenStudy (anonymous):

so i should just write "number of sides = number of lines of symmetry" ?

OpenStudy (welshfella):

yes

OpenStudy (welshfella):

and draw a few diagrams as i have done

OpenStudy (anonymous):

okay thank you!

OpenStudy (welshfella):

yw

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