∆CDE ~ ∆CAB
CD
__ = CE / CB = DE/AB
CA
CD 6
___ = ____ = 5/7 cm
CA 6 + EB
4z = 30 + 5EB
1z = 5 EB
EB = 12/5 = 2,4 cm
Baca Juga: Kunci Jawaban Bahasa Indonesia Kelas 9 Halaman 130, Menelaah Teks Diskusi Kesadaran Membayar Pajak
b. Menentukan panjang CE
jawaban :
∆CAB ~ ∆DEB
CA
___ = AB/EB = CB/DB
DE