Question: a. Given that X and Y are difference points, does the rigid motion R X,180 o R Y,90 have any fixed points? How many? b.

a. Given that X and Y are difference points, does the rigid motion R X,180 o R Y,90 have any fixed points? How many?

b. Is R X,180° o R Y,90°  = R X,90° o R Y,180° ?

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