tentukan volume tabung berikut!
tolong jawab ya... a sampai c
tolong jawab ya... a sampai c
Jawaban:
1.1570
2.3080
3.34650
Penjelasan dengan langkah-langkah:
d = 10:2= 5
V = 3,14 x 5 x 5 x 20 = 1570 Cm
r = 7
V = 22/7 x 7 x 7 x 20 = 3080 cm
r = 21
V = 22/7 x 21 x 21 x 25 = 34.650
Volume tabung = πr²t
A = 3,14 × 5 × 5 × 20
= 15,7 × 100
= 1.570 cm³
B = 22/7 × 7 × 7 × 20
= 22 × 140
= 3.080 cm³
C = 22/7 × 21 × 21 × 25
= 22 × 3 × 21 × 25
= 66 × 525
= 34.650 cm³
Keterangan:
π = 22/7 atau 3,14
t = tinggi
r = Jari jari
