tolong dijawab dengan benar, mksh ☺

luas segitiga ECD = 36
36 = 1/2 × a × t
36 = 1/2 × 6 × t
72 = 6 × t
t = 72/6 = 12
Luas segitiga ADE = 1/2 × a × t
L = 1/2 × 18 × 12
L = 9 × 12
L = 108 cm^2