Jawaban:
[tex] \frac{25}{x} = \frac{x}{9} \\ {x}^{2} = 25 \times 9 \\ x = \sqrt{225} = 15[/tex]
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Jawaban:
[tex] \frac{25}{x} = \frac{x}{9} \\ {x}^{2} = 25 \times 9 \\ x = \sqrt{225} = 15[/tex]