Penjelasan dengan langkah-langkah:
Lp tabung - alas atap
Lp = 2 × phi × r (r+t) - (phi × r^2 × 2)
Lp = 2 × 22/7 × 7 ((7+12) - (22/7 × 7 × 7 × 2)
Lp = 836 - (22 × 1 × 7 × 2)
Lp = 836 - 308
Lp = 528 cm2
Lp bola
Lp = 4 × phi × r^2
Lp = 4 × 22/7 × 7 × 7
Lp = 4 × 154
Lp = 616 cmw
Lp gabungan
Lp = 528 + 616
Lp = 1.144 cm2
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Penjelasan dengan langkah-langkah:
Lp tabung - alas atap
Lp = 2 × phi × r (r+t) - (phi × r^2 × 2)
Lp = 2 × 22/7 × 7 ((7+12) - (22/7 × 7 × 7 × 2)
Lp = 836 - (22 × 1 × 7 × 2)
Lp = 836 - 308
Lp = 528 cm2
Lp bola
Lp = 4 × phi × r^2
Lp = 4 × 22/7 × 7 × 7
Lp = 4 × 154
Lp = 616 cmw
Lp gabungan
Lp = 528 + 616
Lp = 1.144 cm2