Bantu Jawab Matematika kak, Terimakasih

Volume Gabungan
= Volume Kerucut + Volume ½ bola
= ( ⅓ × π × r² × t ) + ( ½ × 4/3 × π × r³ )
= ( ⅓ × 22/7 × 7² × 9 ) + ( ½ × 4/3 × 22/7 × 7³ )
= ( ⅓ × 1.386 cm³ ) + ( ½ × 1.437,33 cm³ )
= 462 cm³ + 718.665 cm³
= 1.180,67 cm³ ( opsi 'C' )
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