Jawaban:
Panjang Rusuk kubus Luas Permukaan Kubus 294 cm² ...
[tex] \sf Luas = 6 \times {r}^{2} [/tex]
[tex] \: \: \sf 294 = 6 \times {r}^{2} [/tex]
[tex] \: \: \: \: \: \sf {r}^{2} = \frac{294}{6} \: cm \\ [/tex]
[tex] \: \: \: \: \: \sf {r}^{2} = 49 \: cm[/tex]
[tex] \: \: \: \: \: \: \: \sf r = \sqrt{49} \: cm[/tex]
[tex] \: \: \: \: \: \: \: \sf r = 7 \: cm[/tex]
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Jawaban:
Penyelesaian :
Panjang Rusuk kubus Luas Permukaan Kubus 294 cm² ...
Mencari rusuk kubus
[tex] \sf Luas = 6 \times {r}^{2} [/tex]
[tex] \: \: \sf 294 = 6 \times {r}^{2} [/tex]
[tex] \: \: \: \: \: \sf {r}^{2} = \frac{294}{6} \: cm \\ [/tex]
[tex] \: \: \: \: \: \sf {r}^{2} = 49 \: cm[/tex]
[tex] \: \: \: \: \: \: \: \sf r = \sqrt{49} \: cm[/tex]
[tex] \: \: \: \: \: \: \: \sf r = 7 \: cm[/tex]