Your directions on a scavenger hunt map say to walk (36 mathrm{~m}) east, then (42 mathrm{~m}) south,

Question:

Your directions on a scavenger hunt map say to walk $36 \mathrm{~m}$ east, then $42 \mathrm{~m}$ south, then $25 \mathrm{~m}$ northwest. With the positive $x$ direction being east, what is your displacement $(a)$ in polar coordinates and $(b)$ in Cartesian coordinates?

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