Bola memiliki diameter 20 cm, berapa volumenya?
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Ekspektasi: Indonesia siap kalahkan Thailand :|
Realita: Indonesia siap (di)kalahkan Thailand :/
» Diket :
- Diameter bola orang adalah = 20 Cm
» Ditanya :
- Volume bola ??.
» jawab :
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- Ingat!
Rumus ➡ Volume = 1/6 × π × d³
Volume = 4/3 × π × r³
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d = 20 ➡ r = 10
[tex] \sf \: volume = \frac{4}{3} \times \pi \times {r}^{3} [/tex]
[tex] \sf \: = \frac{4}{3} \times 3,14 \times {10}^{3} [/tex]
[tex] \sf \: = \frac{4}{3} \times 3,14 \times (10 \times 10 \times 10)[/tex]
[tex] \sf = \frac{4}{3} \times 3,14 \times 1.000[/tex]
[tex] = \sf \frac{4 \times 3,14 \times 1.000}{3} [/tex]
[tex] \sf = \frac{12.560}{3} \sf[/tex]
[tex] \sf = 4.186,6 \: {cm}^{2} [/tex]
Penjelasan dengan langkah-langkah:
Diameter = 20 Cm ÷ 2 = 10 Cm
Volume :
= 4/3·π·r·r·r
= 4/3·3,14·10·10·10
= 4/3·3.140
= 4.186,67 Cm³
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