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2000 Mathematics Subject Classiﬁcation. Primary 01A73, 51–01;
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Library of Congress Cataloging-in-Publication Data
Hadamard, Jacques, 1865–1963.
[Le¸ cons de g´ eom´etrie ´ elementaire. English]
Lessons in geometry : plane geometry / Jacques Hadamard ; translated from the French by
Mark E. Saul.
“The present book is a translation of the thirteenth edition of the ﬁrst volume, ﬁrst printed
by Librarie Armand Colin, Paris, in 1947 and reprinted by
Editions Jacques Gabay, Sceaux, in
Includes bibliographical references.
ISBN 978-0-8218-4367-3 (alk. paper)
1. Geometry. I. Title.
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c 2008 by the American Mathematical Society. All rights reserved.
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