Prelims 2008 · archive
EasyWhat does the Baudhayan theorem (Baudhayana Sulva Sutras) relate to?
Answer & explanation
Answer: (a) Lengths of sides of a right-angled triangle
The Baudhayana theorem in the Sulbasutras is the statement of what is now called the Pythagoras theorem, relating the sides of a right-angled triangle.
- ✓ (a) The Sulbasutras state the Pythagorean relation and use it in constructing altars.
- ✗ (b) The Sulbasutras give approximations of pi, but the named 'theorem' is the right-triangle rule.
- ✗ (c) Logarithms are a much later development.
- ✗ (d) The normal curve is modern statistics.
Remember · Baudhayana Sulbasutra (c. 800 BCE): Pythagoras theorem for altar geometry.
📘 Read it in NCERT: Class 11 Knowledge Traditions and Practices of India, Part I, Ch 6 (practise this chapter) · Class 11 Knowledge Traditions and Practices of India, Part I, Ch 6 (practise this chapter)
Sources
- NCERT Class 11 · Knowledge Traditions and Practices of India, Part I, Chapter 6 “In the Sulbasutras, a statement of the Pythagoras theorem can be seen alongwith its applications in various geometric constructions”
- NCERT Class 11 · Knowledge Traditions and Practices of India, Part I, Chapter 6 “The oldest known mathematics texts in existence are the Sulbasutras of Baudhayana, Apastamba and Katyayana”
Question: UPSC Civil Services (Preliminary) 2008, General Studies paper. UPSC did not publish an answer key for 2008: the answer shown is the one the sources above support. Explanation: Minimalist IAS, checked 24 Oct 2026 (how we verify). ·