no 22-23 pake cara ya

22) L.layang-layang+L.jajar genjang
=½×D1×D2+a×t
=½×(7+21)×(7×2)+50×7
=½×28×14+350
=196+350
=546cm² (B)

23)L.segitiga+L.persegi panjang
=½×a×t+p×l
=½×76×(52-24)+52×16
=½×76×28+832
=1064+832
=1896 (?)