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November 2019
गिरिधर, एस. (2019) बाज़ार और गणित. At Right Angles. ISSN 2582-1873
नायर, विनय (2019) एक गणितीय तीर्थयात्रा : रामानुजन यात्रा. At Right Angles. ISSN 2582-1873
Murthy, M. Narasimha (2019) Brahmagupta’s theorem. At Right Angles (5). p. 27. ISSN 2582-1873
Jha, Shreyan (2019) Explorations on triangles with integer sides. At Right Angles (5). pp. 41-42. ISSN 2582-1873
Katkar, Laxman N. (2019) Extensions of the theorem of Pythagoras. At Right Angles (5). pp. 11-16. ISSN 2582-1873
Jagadeeshan, Shashidhar (2019) From regular pentagons to the icosahedron and dodecahedron via the golden ratio – ii. At Right Angles (5). pp. 17-26. ISSN 2582-1873
Ramachandran, A. (2019) Generalising the divisibility tests of 9 and 11. At Right Angles (5). pp. 32-33. ISSN 2582-1873
Gowers, William Timothy (2019) How Craig Barton wishes he’d taught maths. At Right Angles (5). pp. 83-88. ISSN 2582-1873
Shirali, Shailesh (2019) How to prove it. At Right Angles (5). pp. 51-57. ISSN 2582-1873
Sircar, Swati (2019) Low floor high ceiling tasks : in-cyclic quads. At Right Angles (5). pp. 47-50. ISSN 2582-1873
Ramachandran, A. (2019) Middle school problems on averages. At Right Angles (5). pp. 74-76. ISSN 2582-1873
Nandi, Avipsha (2019) Orthocentre of a triangle and its distance from any point in the plane. At Right Angles (5). pp. 58-65. ISSN 2582-1873
Shirali, Padmapriya (2019) Percentages. At Right Angles (5). pp. 1-12. ISSN 2582-1873
De, Prithwijit and Shirali, Shailesh (2019) Problems for the senior school. At Right Angles (5). pp. 77-80. ISSN 2582-1873
Bhatt, Meghraj (2019) Simple cryptography. At Right Angles (5). pp. 29-31. ISSN 2582-1873
Sircar, Swati (2019) Tearout : isometric sketches and more. At Right Angles (5). pp. 43-46. ISSN 2582-1873
Radhu, Jaleel (2019) A challenging geometric construction problem. At Right Angles (5). pp. 81-82. ISSN 2582-1873
Ghosh, Jonaki B. (2019) The game of craps. At Right Angles (5). pp. 66-73. ISSN 2582-1873
Nair, Vinay (2019) A mathematical pilgrimage : Ramanujan yatra. At Right Angles (5). pp. 5-10. ISSN 2582-1873
Prakash, Anand (2019) A modified pascal triangle. At Right Angles (5). pp. 37-40. ISSN 2582-1873
Venkatasubban, Rajatadri (2019) An unusual proof of the centroid theorem. At Right Angles (5). pp. 34-36. ISSN 2582-1873