d = 20 cm
r = 10 cm
t = 16 cm
Ltabung = 2.L alas + K alas . tinggi
= 2. π r ² + 2 π r . t
= 2 π r (r + t)
= 2 × 3,14 × 10 (10+16)
= 62,8 × 26
= 1632,8 cm²
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d = 20 cm
r = 10 cm
t = 16 cm
Ltabung = 2.L alas + K alas . tinggi
= 2. π r ² + 2 π r . t
= 2 π r (r + t)
= 2 × 3,14 × 10 (10+16)
= 62,8 × 26
= 1632,8 cm²
= 3,14 x 20 = 62,8 cm
panjang sisi tab. = kel. lingkaran.
luas = p x l = 62,8 x 16 = 1.001,8 cm