Question

Tabung (gambar di bawah ini) tingginya 15 cm. Isi tabung = … cm3
*

A. 577.5
B. 2.310
C. 770
D. 1,155

Answer 1

Jawaban:

Penyelesaian :

• Tinggi (t) = 15 cm
• Jari - jari (r) = 7 cm
• Volume = ...

Volume tabung

[tex] \sf V = \pi \times {r}^{2} \times t[/tex]

[tex] \: \: \: \: \: \sf = \frac{22}{7} \times {7}^{2} \times 15 [/tex]

[tex] \: \: \: \: \: \sf = \frac{22}{7} \times 49 \times 15[/tex]

[tex] \: \: \: \: \: \sf = \frac{22}{ \cancel{7 \: }} \times { \cancel{49}}^{ \: \: \red{7}} \times 15[/tex]

[tex] \: \: \: \: \: \sf = 22 \times 7 \times 15[/tex]

[tex] \: \: \: \: \: \sf = 22 \times 105[/tex]

[tex] \: \: \: \: \: \sf = \red{2.310 \: {cm}^{3} }[/tex]

'비상' (Svt)