luas daerah yanng diarsir adalah...

Bangun datar tsb dibagi 4 bagian
L1 = 10 x 15 = 150
L2 = 6 x 6 = 36
L3 = 12 x 6 = 72
L4 = 6 x 6 = 36

L = L1 + L2 + L3 + L4
L = 150 + 36 + 72 + 36
L = 294

Jawaban A