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India in Triangles: The Incredible Story of How India was Mapped and the Himalayas Measured | Explore the History and Science Behind The Great Trigonometrical Survey | Ages 11+

India in Triangles: The Incredible Story of How India was Mapped and the Himalayas Measured | Explore the History and Science Behind The Great Trigonometrical Survey | Ages 11+

Shruthi Rao
,
Meera Iyer
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Paperback / Hardback

Step into the boots of fearless surveyors as they trek across forests, mountains and monsoons—facing disease, wild animals and gruelling terrain—to chart the subcontinent with astonishing precision.

This was the Great Trigonometrical Survey, an ambitious mission to map India using triangulation—a brilliant method that helped them measure every inch with accuracy. Along the way, they calculated the height of the world’s tallest mountain and revealed the true shape of the earth.

Packed with adventure, ingenuity, mishaps and the unsung heroes of science, this is the epic true story of mathematics, grit and discovery.

Imprint: India Puffin

Published: Jun/2025

ISBN: 9780143468387

Length : 144 Pages

MRP : ₹299.00

India in Triangles: The Incredible Story of How India was Mapped and the Himalayas Measured | Explore the History and Science Behind The Great Trigonometrical Survey | Ages 11+

Shruthi Rao
,
Meera Iyer

Step into the boots of fearless surveyors as they trek across forests, mountains and monsoons—facing disease, wild animals and gruelling terrain—to chart the subcontinent with astonishing precision.

This was the Great Trigonometrical Survey, an ambitious mission to map India using triangulation—a brilliant method that helped them measure every inch with accuracy. Along the way, they calculated the height of the world’s tallest mountain and revealed the true shape of the earth.

Packed with adventure, ingenuity, mishaps and the unsung heroes of science, this is the epic true story of mathematics, grit and discovery.

Buying Options
Paperback / Hardback

Shruthi Rao

Shruthi Rao (http://shruthi-rao.com) has a master’s degree in energy engineering, and worked in the IT industry before she started writing. She is the author of 10 Indian Women Who Were the First to Do What They Did (2019, Duckbill), 20 Indians Who Changed the World (2019, Talking Cub), Susie Will Not Speak (2018, Duckbill), Manya Learns to Roar (2017, Duckbill), The Secret Garden (2016, NSI), Avani and the Pea Plant (2016, Pratham), among others. She lives in the San Francisco Bay Area, and loves books, desserts, trees, benches, science and long walks.

Meera Iyer

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