Question

Perhatikan gambar berikut! Jika AD: ED = 5/2, DC = 1 10 cm, AB = 20 cm.Maka panjang EF adalah ...​

Answer 1

Kesebangunan

ED / AD = (EF - DC) / (AB - DC)

2 / 5 = (EF - 10) / (20 - 10)

2 / 5 = (EF - 10) / 10

5 (EF - 10) = 2 (10)

EF - 10 = 20 ÷ 5

EF - 10 = 4

EF = 4 + 10

EF = 14 cm ✔️

opsi A

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