Tolong bantu jawab yaa..
D = 14 cm
r = 14 : 2 = 7 cm
V.kerucut
= 1/3 . π . r^2 . t
= 1/3 × 22/7 × 7 × 7 × 9
= 1/3 × 22 × 7 × 9
= 462 cm^3
V. tabung
= π . r^2 × t
= 22/7 × 7 × 7 × 9
= 22 × 7 × 9
= 1.386 cm^3
Volume gabungan tabung dan kerucut
= 1.386 + 462
= 1.848 cm^3 ✔