Question

1 ,2 tolong di jawab ya...

Answer 1

1) segitiga sama kaki maka kedua sudut sama besar.
180° = 36° +3x +3x
180° -36° = 6x
144° = 6x
x = 144° :6
x = 24°

2) L.MKL = 1/2 x (16+9) x 12 = 150cm²
L.MKN = 1/2 x 9 x 12 = 54cm²
L.MNL = L.MKL-L.MKN = 150-54 = 96cm²