bantu saya kak menjawab soal mtk beserta caranya

BD = 12V2 cm
TO = 8 cm
BD = AB V2
12V2 = AB V2
AB = 12 cm
AB = BC = CD = DA = 12 cm

a]

t (TBC)
= V(TO^2 + (1/2 × BC)^2)
= V(8^2 + (1/2 × 12)^2)
= V(8^2 + 6^2)
= V(64 + 36)
= V100
= 10 cm

L segitiga TBC
= 1/2 × BC × t (TBC)
= 1/2 × 12 × 10
= 60 cm^2


b]

V limas T.ABCD
= 1/3 × AB^2 × TO
= 1/3 × 12^2 × 8
= 1/3 × 144 × 8
= 384 cm^3