Referenced from lesson The Distance Formula (Spring, 2021)

Distance between the pyret and the boot:

num-sqrt​(​num-sqr​(​line-length​(​9, -3​)​) + num-sqr​(​line-length​(​3, -2​)​)​)

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Explain how the code works.

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Now write the code to find the distance between this boot and pyret.

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