Diketahui=Jajargenjang KLMN.Jika KL=30 cm, LM=48 cm, MN= (4x+6) cm, tinggi = 42 cm. Tanya= Tentukan! a)Nilai x b)Keliling jajargenjang KLMN c)Luas jajargenjang KLMN Jawab=
lovitafelis
K= 1/2 x [30+48+(4x+6)] x 42 1/2x [4x + 84] x42 1/2x [84/4]x 42 1/2 x 21 x 42 21x21 441
1/2x [4x + 84] x42
1/2x [84/4]x 42
1/2 x 21 x 42
21x21
441
maaf kalo salah