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klo tidak salah
DA= akar 13"-5"
DA= akar 169-25
DA=akar 144
DA= 12 cm (tinggi)
Bangun 2
AC"=AD x AB
9"=AD x 15
81=AD x 15
AD= 5,4 cm
BC=akar AB"-AC"
BC=akar 15"-9"
BC=akar 225-81
BC=akar 144
BC=12 cm
BC"=BD x AB
12"=BD x 15
144=BD x 15
BD=9,6
DC=akar AD x BD
DC=akar 5,4 x 9,6
DC=akar 51,48