Question

Tolong pakai caranya:)

Answer 1

Menggunakan cara perbandingan segitiga sebangun.
membandingkan segitiga ABC dan segitiga DBE

alas ABC/tinggi ABC = alas DBE/ tinggi DBE
AB/AC = DB/DE
2/5 = DB/2
DB = 4/5

EF = ...?
EF = AD

AB = AD + DB
2 = AD + 4/5
AD = 2 - 4/5
AD = 6/5

Maka, EF = 6/5 = 1,2 m