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Sagot :
The measure of the other side of a quadrilateral is [tex]3\sqrt{13}[/tex] cm.
In the given quadrilateral one side is unknown we need to find the unknown side.
By dividing the given quadrilateral into a rectangle and a triangle we can find the other side.
What is Pythagoras theorem?
The Pythagoras theorem states that if a triangle is right-angled, then the square of the hypotenuse is equal to the sum of the squares of the other two sides. That is, [tex]c^{2}=a^{2}+b^{2}[/tex].
Now, [tex]x^{2} =9^{2}+6^{2}=81+36=17[/tex]
⇒[tex]x=\sqrt{13 \times 9} =3\sqrt{13}[/tex]
Therefore, the measure of the other side of a quadrilateral is [tex]3\sqrt{13}[/tex] cm.
To learn more about Pythagoras' theorem visit:
https://brainly.com/question/343682.
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