Question
Given: Quadrilateral WXYZ is circumscribed about $\odot \mathrm{O}$ (that is, its sides$\cdot$ are tangent to the $\odot$ ). Prove: $\mathrm{XY}+\mathrm{WZ}=\mathrm{WX}+\mathrm{YZ}$Prove: $\mathrm{XY}+\mathrm{WZ}=\mathrm{WX}+\mathrm{YZ}$(Figure can't copy)
Step 1
Step 1: Let's denote the points of tangency on $WX, XY, YZ, ZW$ as $P, Q, R, S$ respectively. Show more…
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