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(6 + 9) / 10 = DF / 7
15 / 10 = DF / 7
DF = (15 x 7) / 10
DF = 10,5 cm
semoga membantu ya :)
Menggunakan prinsip kesebangunan, maka:
EG/ED = GH/DF
10/(6+9) = 7/DF
10/15 = 7/DF
DF = 15 x 7 / 10
DF = 105/10
DF = 10,5 cm [A]
Nomor 27.
Karena RR dominan, maka:
Dengan tabel didapat:
RR : rr = (1+2) : 1
RR : rr = 3 : 1