Keliling alas = 2 x 22/7 x r 132 = 2 x 22/7 x r 132 x 7 = 2 x 22 x r 924 = 44 x r r = 924 : 44 r = 21 volume tabung = 22/7 x 21 x 21 x 15 volume tabung = 22 x 3 x 21 x 15 v tabung = 20.790 cm³ (C)
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Chika289
Makasih ya kak Syifa :D trima kasih banyakkk
Verified answer
Keliling alas = 2 x 22/7 x r132 = 2 x 22/7 x r
132 x 7 = 2 x 22 x r
924 = 44 x r
r = 924 : 44
r = 21
volume tabung = 22/7 x 21 x 21 x 15
volume tabung = 22 x 3 x 21 x 15
v tabung = 20.790 cm³ (C)
=>> 2 π r
r =>> L / 2 × π
=>> 132 / 2 × 22/7
=>> 132 / 44 / 7
=>> 132 × 7/44
=>> 21 cm
r =>> 21 cm
t =>> 15 cm
V =>> π r ^2 × t
=>> 22/7 × 21 × 21 × 15
=>> 1.386 × 15
=>> 20.790
jawabannya adalah c.20.790 cm3