~~~BONUS POIN~~~ Tolong bantu jawab soalnya besok mau di kumpulinn Jawab dng benar yaahh & pake cara

segitiga ACD
tinggi = AD = 10 cm
alas = AC = 12 cm
a. AB : BC = 1 : 2
jumlah perbandingan 1 +2 = 3
AB = 1/3 × 12 = 4 cm
BC = 2/3 × 12 = 8 cm

b. Luas ∆ BCD = 1/2 × alas × tinggi
= 1/2 × AD × BC
= 1/2 × 10 × 8
= 40 cm²

Ab panjang e 4 trus bc pjg e 8 trus luas bcd 1/2 ×8×10 = 40