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Mapel : MatematikaBab : Kesebangunan dan Kekongruenan
Diketahui :
- KL = 6 cm
- LN = 3 cm
Ditanya :
- MN = ......?
Penyelesaian :
- LM :
KL² = LN × LM
(6 cm)² = 3 cm × LM
36 cm² = 3LM cm
LM = 36 cm² ÷ 3 cm
LM = 12 cm
- MN :
LM = MN + LN
MN = LM - LN
MN = 12 cm - 3 cm
MN = 9 cm
Jawaban : C. 9 cm
Maaf Kalau Salah
6²=3 x LM
36=3 x LM
LM=36/3
LM=12
jadi,MN=LM-LN
MN=12-3
MN=9 cm