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caranya cari dulu besar GC CI IB HG dan HF
JAWABANNYA
GC = √ 4²+3²
= √16 +9
= √25
= 5 cm
panjang IB
4/u = 5/4
5u = 16
u = 3,2 cm
panjang CI
3/u = 5/4
5u = 12
u = 2,4 cm
panjang HF
5/3 = 3/u
5u = 9
u = 1,8 cm
panjang GH
5/3= 4/u
5u = 12
u = 2,4cm
pembuktian kesebangunan jawaban soal A (TERBUKTI SEBANGUN)
⇒ FG : GC = 3 : 5
= 0,6
⇒ GH DC = 2,4 : 4
= 0,6
⇒FH : GD = 1,8 : 3
= 0,6
pembuktian kesebangunan jawaban soal B (TERBUKTI SEBANGUN)
⇒GC : CB = 5 : 4
= 1,25
⇒ DC BI = 4 : 3,2
= 1,25
⇒ DG : CI = 3 : 2,4
= 1,25