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Mathematics 23 Online
OpenStudy (anonymous):

How many lines of symmetry does an equilateral triangle have?

OpenStudy (cwrw238):

if you draw a line from one vertex of the triangle to the midpoint of the opposite side you have a line of symmetry |dw:1403617548036:dw|

OpenStudy (cwrw238):

how many of these lines can you draw?

OpenStudy (anonymous):

1 right

OpenStudy (cwrw238):

no - there are 3 vertices on the triangle

OpenStudy (anonymous):

oh

OpenStudy (cwrw238):

|dw:1403617696949:dw|

OpenStudy (cwrw238):

they are the 3 lines of symmetry - each of them cut the triangle in half

OpenStudy (anonymous):

ohhh

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