They're annoying, really annoying. But when you get the hang of it they can be pretty useful. So here's why I bring them up, lately my geometry teacher has been out so we have been given review work.
Which means that instead of new material we will be going over old things.
So who remembers the rotations and reflections of shapes across a plane? It's pretty easy.
90 degrees is (x,y)--->(y,-x)
180---->(x,y)-->(-x,-y)
270--->(x,y)-->(-y,x)
That's what we've been doing in class.
Which means that instead of new material we will be going over old things.
So who remembers the rotations and reflections of shapes across a plane? It's pretty easy.
90 degrees is (x,y)--->(y,-x)
180---->(x,y)-->(-x,-y)
270--->(x,y)-->(-y,x)
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