Kunci Jawaban Matematika Kelas 9 Halaman 254 - 259 Semester 2 Latihan 4.4 Kesebangunan Dua Segetiga No 1 - 17

m∠A = m∠D, m∠C = m∠E, m∠B = m∠B

d. Tentukan panjang FE dan AF.

FE = 6 cm

AF = ED (sejajar) = 8 cm

7. Perhatikan gambar.

a. Hitunglah panjang EB

ΔABC ∼ ΔDEC

CB/CE = AB/DE
CB/6 = 7/5
CB = (7/5)x6
CB = 8,4

CB = CE + EB
EB = CB - CE
EB = 8,4 - 6
EB = 2,4

b. Hitunglah panjang CE