Permasalahan tersebut dapat diselesaikan dengan menggunakan Teorema Pytahogras sebagai berikut:

<img align="middle" alt="begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell a squared plus a squared end cell equals cell open parentheses square root of 32 close parentheses squared end cell row cell 2 a squared end cell equals 32 row cell a squared end cell equals 16 row a equals cell plus-or-minus 4 end cell end table end style" class="Wirisformula" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mstyle mathsize=¨14px¨»«mtable columnspacing=¨0px¨ columnalign=¨right center left¨»«mtr»«mtd»«msup»«mi»a«/mi»«mn»2«/mn»«/msup»«mo»+«/mo»«msup»«mi»a«/mi»«mn»2«/mn»«/msup»«/mtd»«mtd»«mo»=«/mo»«/mtd»«mtd»«msup»«mfenced»«msqrt»«mn»32«/mn»«/msqrt»«/mfenced»«mn»2«/mn»«/msup»«/mtd»«/mtr»«mtr»«mtd»«mn»2«/mn»«msup»«mi»a«/mi»«mn»2«/mn»«/msup»«/mtd»«mtd»«mo»=«/mo»«/mtd»«mtd»«mn»32«/mn»«/mtd»«/mtr»«mtr»«mtd»«msup»«mi»a«/mi»«mn»2«/mn»«/msup»«/mtd»«mtd»«mo»=«/mo»«/mtd»«mtd»«mn»16«/mn»«/mtd»«/mtr»«mtr»«mtd»«mi»a«/mi»«/mtd»«mtd»«mo»=«/mo»«/mtd»«mtd»«mo»§#177;«/mo»«mn»4«/mn»«/mtd»«/mtr»«/mtable»«/mstyle»«/math»" height="84" role="math" src="data:image/png;base64,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" style="max-width: none; vertical-align: -42px;" width="109" />&nbsp;

Karena panjang merupakan sebuah bilangan non-negatif, maka nilai yang mungkin adalah 4 satuan.

Tentukan nilai&nbsp;a&nbsp;di bawah!

<img alt="" src="https://imgix2.ruangguru.com/assets/miscellaneous/jpg_xjbytw_9739.JPG" style="width: 290px; height: 209px;" />&nbsp;

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Tentukan nilai a di bawah!

Jawaban: