Tolong hitung no 9 dan 10! No 9 cari panjang diameternya, kalau no 10 cari luas alas prisma! Tolong hitungkan ya!

9)V=3080cm3
t=20cm
d=3080÷20
=154÷phi
=154×7/22
=49
=√49
=7×2=14cm<====diameter

10)V=La×t
V=2730cm3
t=26cm
La=V/t
=2730/26
=105<====Luas alas

9.
Diameter Tabung :
V = ¼πd²t
3.080 = ¼ × 22/7 × 20d²
3.080 = 22/7 × 5d²
3.080 = 110/7d²
d² = 3.080 × 7/110
d² = 196
d = 14 cm

Jawaban : d. 14

10.
Luas Alas Prisma :
V = La × t
2.730 = 26La
La = 2.730 ÷ 26
La = 105 cm²

Jawaban : a. 105

Maaf Kalau Salah