tolong dijawab pake cara
notes:cari temen
notes:cari temen
Penjelasan dengan langkah-langkah:
d = 24 cm
r = 12 cm
t = 16 cm
s = √(12²+16²)
s =√(144+256)
s = √400
s = 20 cm
Lp = πr(r + 2t) + πrs
Lp = πr(r + 2t + s)
Lp = 3,14 x 12 x (12 + 2x16 + 20)
Lp = 37,68 x 64
Lp = 2.411,52 cm²
Diketahui
- d : 24 cm
- r : 12 cm
- t : 16 cm
- s : ??
Cari s kerucut
[tex]S = \sqrt{(r {}^{2} + t {}^{2} )} \\ \\ = \sqrt{(12 {}^{2} + 16 {}^{2} )} \\ \\ = \sqrt{(144 + 256) } \\ \\ = \sqrt{400} \\ \\ S = 20cm[/tex]
Lp gabungan =
[tex] = \pi \: r(r + 2t) + \pi \: rs \\ \\ = \pi \: r(r + 2t + s) \\ \\ = 3,14 \times 12(12 + 2 \times 16 + 20) \\ \\ = 37,68(12 + 32 + 20) \\ \\ = 37,68(64) \\ \\ = 2.411,52 \: cm {}^{2} [/tex]
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