No 2
luas permukaan tabung = 2πr ( r + t )
= 2 × 3,14 × 12 × ( 12 + 35 )
= 2 × 3,14 × 12 × 47
= 3541,92 cm²
No 3
d = 21 cm
t = 30 cm
V = 1/4 × 22/7 d × d × t
= 1/4 × 22/7 21 × 21 × 30
= 13.230/28
= 472,5 cm³
= 0,4725 liter
minyak yang tumpah
= 11 - 0,4725
= 10,5275 liter
No 4
Volume = 3,14 × ( 50 )² × 100
= 7850 liter
agar penuh ditambah 1/5 nya
= 1/5 × 785
= 157 liter
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salam kenal ◉‿◉
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No 2
luas permukaan tabung = 2πr ( r + t )
= 2 × 3,14 × 12 × ( 12 + 35 )
= 2 × 3,14 × 12 × 47
= 3541,92 cm²
No 3
d = 21 cm
t = 30 cm
V = 1/4 × 22/7 d × d × t
= 1/4 × 22/7 21 × 21 × 30
= 13.230/28
= 472,5 cm³
= 0,4725 liter
minyak yang tumpah
= 11 - 0,4725
= 10,5275 liter
No 4
Volume = 3,14 × ( 50 )² × 100
= 7850 liter
agar penuh ditambah 1/5 nya
= 1/5 × 785
= 157 liter
SEMOGA MEMBANTU
salam kenal ◉‿◉