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d1truth
09-11-2005, 02:39 PM
Rotate the point A(1,2) with respect to point B(3,4) for the angle 35 degrees, and find the coordinates for the rotated point.

stapel
09-11-2005, 02:54 PM
What tools and/or methods have you been taught for doing this? Are you using matrices? Triangles and trig? Something else? In which direction does the rotation go? Clockwise, or anti-clockwise?

Thank you.

Eliz.

d1truth
09-11-2005, 03:03 PM
its matrices and counterclockwise.

pka
09-11-2005, 03:46 PM
In geometry the rotation about the point (h,k) through Θ is;
x−h=(x−h)cos(Θ)−(y−k)sin(Θ)
y−k=(x−h)sin(Θ)+(y−k)cos(Θ).