don steward
mathematics teaching 10 ~ 16

Tuesday 7 April 2015

fraction that is a triangle

this task is adapted from one by Tony Gardiner
a rectangle rather than square grid doesn't alter the problem but can make it (seem) a bit different...

similar to the triangles in a square post

and fraction that is a triangle

all 30ths from 7 to 14 inclusive can be drawn for this grid size

apart from the two indicated

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