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Panjang KM=Panjang YX
Jadi Panjang KM= 5cm
Panjang KL
=2a+2
=(2.5)+2 =12
Panjang XZ=Panjang LM yaitu 3b-8
Jadi ...
XZ = √ 5kuadrat + 12kuadrat
= √ 25+144 = √169 = 13
Nilai b
3b-8 =13
3b=13+8
3b=21
b=21/3 = 7
Insya Allah sih