3 ajah(MTK)..,.............

12)
V = 70 cm³
L alas = 14 cm²
V = L alas . t
70 cm³ = 14 cm² . t
t = 70cm³ : 14 cm2
t = 5 cm

13)
r = 9 cm
t = 14 cm

V = πr²t
= 3,14 . (9 cm)² . 14 cm
= 3,14 . 81 cm² . 14 cm
= 3560,76 cm³

14)
d = 5 cm
r = d:2 = 2,5 cm
t = 10 cm

V = πr²t
= 3,14 . (2,5 cm)² . 10 cm
= 3,14 . 6,25 cm² . 10 cm
= 196,25 cm³

A.5Cm Karena
Volume Prisma =LAlas*Tinggi
70:14=5cm
B.3564 Cm3
C.196,25 Cm3