NCERT Mathematics Class 9 Exemplar Ch 5 Introduction to Euclid's Geometry Part 3
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15. Greek’s emphasized on:
(A) Inductive reasoning
(B) Deductive reasoning
(C) Both A and B
(D) Practical use of geometry
Answer: B
16. In Ancient India, Altars with combination of shapes like rectangles, triangles and trapeziums were used for:
(A) Public worship
(B) Household rituals
(C) Both A and B
(D) None of A, B, C
Answer: A
17. Euclid belongs to the country:
(A) Babylonia
(B) Egypt
(C) Greece
(D) India
Answer: C
18. Thales belongs to the country:
(A) Babylonia
(B) Egypt
(C) Greece
(D) Rome
Answer: C
19. Pythagoras was a student of:
(A) Thales
(B) Euclid
(C) Both A and B
(D) Archimedes
Answer: A
20. Which of the following needs a proof?
(A) Theorem
(B) Axiom
(C) Definition
(D) Postulate
Answer: A
21. Euclid stated that all right angles are equal to each other in the form of
(A) An axiom
(B) A definition
(C) A postulate
(D) A proof
Answer: C
22. ‘Lines are parallel if they do not intersect’ is stated in the form of
(A) An axiom
(B) A definition
(C) A postulate
(D) A proof
Answer: B