Tolong di jawab ditambah caranya ya,,terimakasih

1)a. k=8+12+10+19=49cm
        l =a+b/2 x t=12+19/2 x 14 =31 x 7 =217cm²
2)ac = √9²+12² =√81+144=√225 =15cm
   L=d1 x d2/2 = 12 x 15 /2 =180/2 = 90cm²
   K=2(ad)+2(bc)
      =2(9) + 2(12)
      =18+24
      =42cm

1. a. k= 12+8+10+19= 49cm
    l= (12+19) × 14 /2 = 217cm²

    b. k= 25+6+9+16,5=  60,5 cm
        l= (25+16,5) × 6 /2 =124.5cm²

2. k = 9+9+12+12 = 42cm