At facing
clare says, "last class i thought the parallelogram would have reflection symmetry. i tried
using a diagonal as the line of symmetry but it didn't work. so now i'm doubting that it has
rotation symmetry."
lin says, "i thought that too at first, but now
i think that a parallelogram does have
rotation symmetry. here, look at this."
how could lin describe to clare
the symmetry she sees?
" expand image