Tolong bantuannya ya skaligus caranya. Trima kasih...
5dregensleyer
R = 1/2 x 20 = 10 belaha bola pejal (padat ) Lp = 1/2 x 4 x phi x r² + ( phi x r² ) = 2 x 3,14 x 10 x 10 + ( 3,14 x 10 x 10) = 2 x 314 + 314 = 628 + 314 = 942 biaya B = 942 x 50.000 = 4710000
= 10
belaha bola pejal (padat )
Lp = 1/2 x 4 x phi x r² + ( phi x r² )
= 2 x 3,14 x 10 x 10 + ( 3,14 x 10 x 10)
= 2 x 314 + 314
= 628 + 314
= 942
biaya
B = 942 x 50.000
= 4710000
jawabya A