rebecca1233
Six congruent equilateral triangles with a side 5 are placed point to point in a row. What is the perimeter of the figure?



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rebecca1233
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30
60
90
120

rebecca1233
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@hartnn

rebecca1233
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30?

hartnn
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could you draw the figure ? because i am having hard time interpreting
' placed point to point in a row. '

rebecca1233
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dw:1355413599643:dw

rebecca1233
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its those but in a row

hartnn
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then the perimeter will be just 5*(3*5)
5 equilateral triangles, each with perimeter (3*5)

rebecca1233
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15

rebecca1233
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there is 6 of those triangles

rebecca1233
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dont forget there is 6 of those triangles

hartnn
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75 is not in options...ohh 6!
then 6*(3*5) = 90

hartnn
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yes!