tolong kak beserta caranya ya
terimakasih
terimakasih
Penjelasan dengan langkah-langkah:
diketahui :
- t kerucut = 18 cm
- t tabung = 54 - 18 = 36 cm
- d = 28 cm
- r = [tex]\frac{28}{2}[/tex] = 14 cm
ditanya : V bangun gabungan
jawab :
V kerucut = [tex]\frac{1}{3}[/tex] × π × r² × t
= [tex]\frac{1}{3}[/tex] × [tex]\frac{22}{7}[/tex] × 14 × 14 × 18
= 22 × 2 × 14 × 6
= 44 × 84
= 3.696 cm³
V tabung = π × r² × t
= [tex]\frac{22}{7}[/tex] × 14 × 14 × 36
= 22 × 2 × 14 × 36
= 44 × 504
= 22.176 cm³
V = V kerucut + V tabung
= 3.696 + 22.176
= 25.872 cm³
⇒ semoga bermanfaat
