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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; plane; angles; parallel; perpendicular; lines; triangle; planes; proposition; straight lines; equal angles; dihedral angles; rectangle contained; triangle abc; angle bac; dihedral angle; parallel planes; angle abc; remaining angle</div>
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Thomas Stephens Davies,  Stephen Fenwick ,  William Rutherford</div>
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