40 cm
Penjelasan dengan langkah-langkah:
K = 1/2 K ling kecil + 1/2 K ling besar + 7
= 1/2 x 22/7 x 7 + 1/2 x 22/7 x 14 + 7
= 11 + 22 + 7
= 40 cm
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40 cm
Penjelasan dengan langkah-langkah:
K = 1/2 K ling kecil + 1/2 K ling besar + 7
= 1/2 x 22/7 x 7 + 1/2 x 22/7 x 14 + 7
= 11 + 22 + 7
= 40 cm