tolong bantu yaaa skrng dgn caranyaa makasih

tinggi trapesium =
√20^2 - (20 - 8)^2 =
√20^2 - 12^2 =
√400 - 144 =
√256 =
16cm

luas permukaan =
2(luas alas) + t.prisma ( keliling alas) =
2({20+8} × 16/2) + 10(20 + 8 + 16 + 20) =
2(28 × 8) + 10(64) =
2(224) + 640 =
448 + 640 =
1088cm^2

volume =
luas alas × tinggi =
(20+8)×16/2 × 10 =
28 × 8 × 10 =
2240cm^3

#semoga membantu.....