Tolong jawab nomer 20,22,24 Please!!!!

tinggi trapesium =
√5^2 - (10-7)^2=
√25 - 3^2 =
√25 - 9 =
√16 =
4cm

luas permukaan =
2(luas alas) + t.prisma(keliling alas) =
2({10+7) × 4/2) + 30(10+7+5+5) =
2(17 × 2) + 30(27) =
2(34) + 810 =
68 + 810 =
878