To identify the articles that form the golden triangle in the Indian Constitution:
1. The golden triangle consists of Articles 14, 19, and 21.
2. Article 14 ensures equality before the law and equal protection of the laws.
3. Article 19 guarantees the freedom of speech and expression, among other freedoms.
4. Article 21 protects the right to life and personal liberty.
Therefore, the correct answer is (1) Articles 14, 19 and 21.