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r tabung = r kerucut = 7 cm
t tabung = 16 cm
Lp total
= L selimut kerucut + L selimut tabung + L alas tabung
= π × r × s + 2 × π × r × t + π × r²
= 22/7 × 7 × 5 + 2 × 22/7 × 7 × 16 + 22/7 × 7²
= 110 + 704 + 154
= 968 cm²