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October 16, 2015

We’re exploring diagonals of quadrilaterals in grade 9 and 10 right now.  In grade 9 we use rulers and protractors to see if the diagonals are rhe same length, bisect each other, and are perpendicular.  In grade 10 we use coordinate points to do the same thing, calculating with the distance, midpoint and slope formulae.

(These two really wanted this picture online)

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