Tolong bantu jawab yaa…

3)V=1/3πr²t
=1/3. 3,14 . 10 . 10 .12
=1/3. 314 . 12
=1256cm³

panjang s
=√8² +6²
=√64 +36
=√100
=10 cm

4) LP =πr(r+s)
=3,14 . 6 (6+10)
=18,84 (16)
=301,44cm²