Menggunakan teorema pythagoras

<img align="middle" alt="begin mathsize 14px style jarak equals square root of left parenthesis x subscript 2 minus x subscript 1 right parenthesis squared plus left parenthesis y subscript 2 minus y subscript 1 right parenthesis squared end root end style" class="Wirisformula" data-mathml="«math style=¨font-family:Arial¨ xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mstyle mathsize=¨14px¨»«mrow»«mi»jarak«/mi»«mo»=«/mo»«msqrt»«msup»«mrow»«mo»(«/mo»«msub»«mi»x«/mi»«mn»2«/mn»«/msub»«mo»-«/mo»«msub»«mi»x«/mi»«mn»1«/mn»«/msub»«mo»)«/mo»«/mrow»«mn»2«/mn»«/msup»«mo»+«/mo»«msup»«mrow»«mo»(«/mo»«msub»«mi»y«/mi»«mn»2«/mn»«/msub»«mo»-«/mo»«msub»«mi»y«/mi»«mn»1«/mn»«/msub»«mo»)«/mo»«/mrow»«mn»2«/mn»«/msup»«/msqrt»«/mrow»«/mstyle»«/math»" role="math" src="data:image/png;base64,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" style="max-width: none;" />&nbsp;

Bagaimana kalian menentukan jarak sebarang dua titik, yakni titik&nbsp;<img align="middle" alt="begin mathsize 14px style straight A left parenthesis x subscript 1 italic comma y subscript 2 right parenthesis end style" class="Wirisformula" data-mathml="«math style=¨font-family:Arial¨ xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mstyle mathsize=¨14px¨»«mrow»«mi mathvariant=¨normal¨»A«/mi»«mo»(«/mo»«msub»«mi»x«/mi»«mn»1«/mn»«/msub»«mo mathvariant=¨italic¨»,«/mo»«msub»«mi»y«/mi»«mn»2«/mn»«/msub»«mo»)«/mo»«/mrow»«/mstyle»«/math»" role="math" src="data:image/png;base64,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" style="max-width: none;" />&nbsp;dan&nbsp;<img align="middle" alt="begin mathsize 14px style straight B left parenthesis x subscript 2 comma y subscript 2 right parenthesis end style" class="Wirisformula" data-mathml="«math style=¨font-family:Arial¨ xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mstyle mathsize=¨14px¨»«mrow»«mi mathvariant=¨normal¨»B«/mi»«mo»(«/mo»«msub»«mi»x«/mi»«mn»2«/mn»«/msub»«mo»,«/mo»«msub»«mi»y«/mi»«mn»2«/mn»«/msub»«mo»)«/mo»«/mrow»«/mstyle»«/math»" role="math" src="data:image/png;base64,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" style="max-width: none;" />&nbsp;

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Bagaimana kalian menentukan jarak sebarang dua titik, yakni titik dan

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