- 4. Perhatikan gambar belah ketupat berikut. Jika AD = (2x + 5), BC = (x + 7), ZBCD = 60°, maka tentukan. D - 9 a. nilai x A С b. panjang sisi AD c. besar ZBAD dan LABC B 204 Kelas VII SMP/MTS Semester 2
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