Penjelasan dengan langkah-langkah:
lp ½ bola
= ½ × 4 × π ×r²
= 2 × 22 ÷ 7 ×7×7
= 44 × 7
= 308cm²
lp tabung = 2 × π × r (r+t)
= 2 × 22÷7 ×7 (7+5)
= 44 × 7 × 12
= 308 × 12
= 3.696cm²
maka, Lo ½ bola + Lptabung
= 308 + 3.696
= 4.004cm²
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Penjelasan dengan langkah-langkah:
lp ½ bola
= ½ × 4 × π ×r²
= 2 × 22 ÷ 7 ×7×7
= 44 × 7
= 308cm²
lp tabung = 2 × π × r (r+t)
= 2 × 22÷7 ×7 (7+5)
= 44 × 7 × 12
= 308 × 12
= 3.696cm²
maka, Lo ½ bola + Lptabung
= 308 + 3.696
= 4.004cm²