Question

Nomor 7 dan 8 tolong di bantunya plisss

Answer 1

7. d=14, t=20
v= 22/7 x 7 x 7 x 20
v= 22 x 7 x 20
v= 154 x 20
v= 3080
8. (12x12/2) - (3.14x3x3)
72 - 28,26
= 43.74
kalau tdk salah

Answer 2

7. diameter:14=r :7 cm
tinggi:20 cm
jawab:
= π × r × r × t
= 22\7 ×7 × 7 ×20
= 22×1×7×20
= 3080cm pangkat dua {D}

8. 864 cm pangkat tiga : 144 cm pangkat dua
= 6 cm {A}