Rotate a geometric figure about a point
Suppose I have a circle and a secant, how do I rotate these 2 figures about the centre of the circle to have different views of the construction using a slider. I want to rotate the original figures withouth having the traces. Example, if I have point A(2,3) and rotate by 90deg angle I want A to be (3,-2) I do not want A'.
There will be many objects, something like a cirle with chords and tangents,labels of angles etc. I want to rotate all of them at one time.