Soal mtk tentang bangun ruang no 7 &8 pls bantu jawab

7. LP=
2 L alas + keliling alas x t
2s²+4st
=2(1)²+4(1)(2)
=2+8
=10cm²

8.Lp=
2L-alas+keliling alas x t
2(1/2 x 10 x 24)+(10+24+26) x 11
= 240+660
=900cm²

semoga bermanfaat  :)