I don't understand how to write the equations using this diagram.

Shutefan asked Dec 17, 2023

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Shutefan asked Dec 17, 2023

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21 votes

Given the segment on the picture, we can write the following 3 equations:

$\begin{gathered} PR=PQ+QR \\ QS=QR+RS \\ PT=PR+RT \end{gathered}$

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