Jawaban:
volume = 1/3 x luas alas x tinggi
maka la = 5×3 = 15/2 = 7,5
volume = 1/3 x 7,5 x 12 = 30 cm3
namun, pada pilihan tidak ada 30cm3
[tex]t ∆= \sqrt{ {m}^{2} - {a}^{2} } = \sqrt{ {5}^{2} - {3}^{2} } \\ \sqrt{25 - 9} = \sqrt{16} = 4cm \\ \\ Volume \: limas \: segitiga \\ \frac{1}{2} \times \frac{1}{3} \times a \times t ∆\times tl \\ \\ \frac{1}{6} \times 3 \: cm\times 4 \: cm \times 12 \: cm \\ \\ 24 \: {cm}^{3} \: (c)[/tex]
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Jawaban:
volume = 1/3 x luas alas x tinggi
maka la = 5×3 = 15/2 = 7,5
volume = 1/3 x 7,5 x 12 = 30 cm3
namun, pada pilihan tidak ada 30cm3
[tex]t ∆= \sqrt{ {m}^{2} - {a}^{2} } = \sqrt{ {5}^{2} - {3}^{2} } \\ \sqrt{25 - 9} = \sqrt{16} = 4cm \\ \\ Volume \: limas \: segitiga \\ \frac{1}{2} \times \frac{1}{3} \times a \times t ∆\times tl \\ \\ \frac{1}{6} \times 3 \: cm\times 4 \: cm \times 12 \: cm \\ \\ 24 \: {cm}^{3} \: (c)[/tex]