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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