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2. CD =
=
=
= 24 cm
AD =
=
=
= 10 cm
3. AC =
=
=
= 5 cm
BC =
=
=
= 12 cm
4. Luas = d₁ d₂
300 = d₁ 24
300 = 12 d₁
d₁ = 25 cm
OB =
=
=
= 16 cm
DO = DB - OB
= 25 - 16
= 9 cm
AD =
=
=
= 15 cm
5. Lebar =
=
=
= 12 cm