Posted by **marie** on Sunday, December 18, 2011 at 8:36pm.

Draw an equilateral triangle. Divide each side in half and join the points to make four small equilateral triangles. Rearrange these four equilateral triangles into a parallelogram. Compare the perimeter of the original triangle with the perimeter of the parallelogram. Explain your results.

- grade six math -
**Reiny**, Sunday, December 18, 2011 at 8:48pm
let the sides of the original be 2x

then each side of the 4 smaller trianges is x

Perimeter of original is 2x+2x+2x= 6x

Sum of all sides of the parallelogram = 6x

Not much to explain here, after you make the sketch just add up the sides to get the perimeter .

- grade six math -
**Anonymous**, Wednesday, January 4, 2012 at 4:11pm
in how many ways can you arrange six things

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