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Luas Alas Lingkaran = Pi x r^2
1.) 3,14 x (18cm)^2 = 1017,36 x 40 (t) = 40694,4 cm^3
2.) 22/7 x 21 x 21 = 1386 x 45 (t) = 62730 cm^3
3.) 3,14 x (16)^2 = 803,86 x 38 (t) = 30545,9 cm^3
4.) 3,14 x (18)^2 = 1017,36 x 88 (t) = 89527,7 cm^3
5.) 3,14 x (15)^2 = 706, 5 x 35 (t) = 24727,5 cm^3
Maaf bila ada kesalahan.
= 3,14 . 18² . 40
= 125,6 . 324
= 406694,4 cm³
2) volume = 22/7 . 21² . 45
= 22 . 3 . 21 .45
= 62370 cm³
3) volume = 3,14 . 16² . 38
= 3,14 . 256 . 38
= 30545,92 cm³
4) volume = 3,14 . 18² . 88
= 3,14 . 324 . 88
= 89527,68 cm³
5) volume = 3,14 . 15² . 35
= 3,14 . 225 . 35
= 24727,5 cm³