Tolong makai cara ya

27. Volume tabung = phi x r x r x t
= 22/7 x 7 x 7 x 20
= 154 x 20
= 3.080 cm kubik
Jawaban B

28. Volume prisma = luas alas x tinggi
= (12x9/2)x 22
= 54x 22
= 1.188 cm kubik
Jawaban C