No 22 nh jwbn.a apa tlng

L.PQRS = 12²
= 144cm²

L.ABCD = 15 x 6
= 90cm²

L.seluruh = 144 + 90
= 234cm²

L.tak arsir = (234 – 198) x ½
= 36 x ½
= 18 cm²

semoga membantu,, jgn lupa lovenya yy