tolongin ya kak makasih

kiri:

lebar = x2-x1 = 10-5 = 5
panjang = y2-y1 = 18 -8 = 10

maka luas = 10 × 5 = 50

kanan:


panjang alas = x2-x1 = 10-4 = 6
tinggi = y2-y1= 12-6 = 6

luas segitiga = 1/2 × alas × tinggi = 1/2 × 6 × 6 = 18