Question

Tolong bantu mengerjakan soal tersebut berserta jalannya.

Answer 1

Vol Tabung= t . a
= (5.2π) . π . (1/2 . 2π)²
= 10 π . π²
= 10 π³

Vol bola=
4/3 . π . r³
4/3 . π π²
= 4/3π³

5 bola = 20/3 π³

Ruangnya =
10π³ - 20/3π³
=10/3π³

:)

Answer 2

R = 1/2d = 1/2.2r = r
V bola = 4/3.πr³ = 4/3.π.r.r.r = 4/3πr³
V 5 bola = 20/3πr²

V tabung = πr²t = π.r.r.(5.2r) = πr²(10r) = 10πr³

ruang kosong = 10πr³ - 20/3πr³ =30/3πr³ - 20/3πr³ = 10/3πr³ = 3,5πr³