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Chapter 4 Activity 3

a

Triangle PWZ is similar to triangle PYX

b

If WXYZ is a cyclic quadrilateral and the lines containing WX and YZ intersect at point P, then PW times PX and PZ time PY are equal

c

Yes. My conjecture still holds true regardless of the location of the point P

d

Since triangle PWZ is similar to triangle PYX we know that corresponding sides PX and PZ as well as PW and PY have a constant ratio. That is PW/PY=PZ/PX. Therefore PW times PX=PZ times PY