Penjelasan dengan langkah-langkah:
V balok :
[tex] \rm= p \times l \times t \\ = \rm15 \times 8 \times 12[/tex]
[tex] \rm = 1.440 \\ [/tex]
V limas :
32 - 12 = 20 cm = tinggi
[tex] \rm = \frac{1}{3} \times la \times t \\ = (\frac{1}{3} \times 15 \times 8) \times 20[/tex]
[tex] \rm = 40 \times 20 \\ \rm = 800[/tex]
V limas + V balok =
volume gabungan
⅓ x la x t + p x l x t
⅓ x 15 x 8 x 20 + 15 x 8 x 12
800 + 1440
2240 cm³
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Penjelasan dengan langkah-langkah:
Pembahasan :
V balok :
[tex] \rm= p \times l \times t \\ = \rm15 \times 8 \times 12[/tex]
[tex] \rm = 1.440 \\ [/tex]
V limas :
32 - 12 = 20 cm = tinggi
[tex] \rm = \frac{1}{3} \times la \times t \\ = (\frac{1}{3} \times 15 \times 8) \times 20[/tex]
[tex] \rm = 40 \times 20 \\ \rm = 800[/tex]
V limas + V balok =
2.240
volume gabungan
⅓ x la x t + p x l x t
⅓ x 15 x 8 x 20 + 15 x 8 x 12
800 + 1440
2240 cm³