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<p>Book digitized by Google from the library of Harvard University and uploaded to the Internet Archive by user tpb.
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<br>Subjects: equal; angle; triangle; angles; sides; lines; draw; straight; triangles; circle; straight lines; triangle abc; radius equal; convex surface; greatest number; equal angles; isosceles triangle; homologous sides; triangular prism; equal parts</div>
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Anna Cabot Lowell</div>
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