Question

Mohon di jawab ya say pliss besok mau dikumpul nieh, pke cara yg lenkap ya pliss

Answer 1

1. V = phi x r^2 x t = 22/7 x 21 cm x 21 cm x 40 cm = 55.440 cm^3

2. V = phi x r^2 x t
   48510 cm^3 = 3,14 x r^2 x 35 cm
   48510 cm^3 = 109,9 x r^2
   r^2 = 48510 cm^3 / 109,9 cm
   r^2 = 441,40127389
   r    = 21 cm

3. V tangki = phi x r^2 x t
     88000 cm^3 = 3,14 x r^2 x 70
     88000 cm^3 = 220 x r^2
     r^2  = 88000/220 = 400
     r = 20

   Lp tangki = 2 x phi x r ( r + t )
   Lp = 2 x 3,14 x 20 ( 20 + 70 )
   Lp = 1256 cm x 90 cm
   Lp = 113040 cm^2


SEMOGA BERMANFAAT :)