luas permukaan balok tanpa tutup dengan panjang 16 cm lebar 12 cm dan tinggi 8cm adalah
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Jawaban:
[tex]lp = 2 {pl + pt + lt} - pl[/tex]
[tex]lp = 2 | {16 \times 12 + 16 \times 8 + 12 \times 8} | - 16 \times 12[/tex]
[tex]lp = 2 |192 + 128 + 96| - 192[/tex]
[tex]lp = 512 - 192 = 320 {cm}^{2} [/tex]
Jawaban:
lp = 2 {pl + pt + lt} - pllp=2pl+pt+lt−pl
lp = 2 | {16 \times 12 + 16 \times 8 + 12 \times 8} | - 16 \times 12lp=2∣16×12+16×8+12×8∣−16×12
lp = 2 |192 + 128 + 96| - 192lp=2∣192+128+96∣−192
lp = 512 - 192 = 320 {cm}^{2}lp=512−192=Jawaban:
lp = 2 {pl + pt + lt} - pllp=2pl+pt+lt−pl
lp = 2 | {16 \times 12 + 16 \times 8 + 12 \times 8} | - 16 \times 12lp=2∣16×12+16×8+12×8∣−16×12
lp = 2 |192 + 128 + 96| - 192lp=2∣192+128+96∣−192
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