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5)karena 2segitiga itu kongruen maka:
a)
KM=XY
a=5cm
b)
KL=ZY
=2a+2cm
=2(5cm)+2cm
=10cm+2cm
=12cm
c)
XZ=
=
=
=13cm
d)
ML=XZ
3b-8cm=13cm
3b=13cm+8cm
b=21cm/3
b=7cm