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KL=12cm
L=96cm²
ditanya:LM=...?
jawab:
kita cari dulu panjang KM
L=1/2×KM×KL
96=1/2×KM×12
96=KM×6
KM=96:6
KM=16cm
LM²=KL²+KM²
LM²=12²+16²
LM²=144+256
LM²=400
LM=√400
LM=20cm
jawaban opsi A
smga membantu:)