median
don steward
mathematics teaching 10 ~ 16

Friday, 8 December 2017

equable orthogonal hexagons

an 'equable' shape has the same value for the perimeter as the value for the area
this work can involve setting up and solving linear equations and forming linear relationships
and generalisations (that can be proved)

an orthogonal polygon just has right angles and 270 degree angles (that I like to call 'left' angles) inside it

[sometimes these are called 'rectilinear polygons'
but 'rectilinear' idetifies shapes that are 'bounded by straight lines' rather than those involving multiples of 90 angles]












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