median
don steward
mathematics teaching 10 ~ 16

Monday 3 March 2014

introduction to pythagoras

a ppt is here

skew squares

complete the squares and work out their areas
in terms of a single unit square

complete the squares and work out their areas

external dissection
internal dissection

a simple case
cut up the squares so that you can see that the area of the larger square is the sum of the smaller two
acute triangles, right angled triangles and obtuse triangles

what relationships hold beteen the areas of the squares for each case?










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