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Llibres Llibres 91 - 100 de 114 sobre ... angles is called a right angle ; and the straight line which stands on the other....
" ... angles is called a right angle ; and the straight line which stands on the other is called a perpendicular to it. 11. An obtuse angle is that which is greater than a right angle. 12. An acute angle is that which is less than a right angle. 13. A term... "
Elements of Geometry: Containing the First Six Books of Euclid with a ... - Pągina 9
per John Playfair - 1855 - 318 pągines
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The Practical Teacher; with which is Incorporated the Practical ..., Volum 2

Joseph Hughes - 1883
...inclination of two lines to one another in » plane which meet together, but are not in the same direction. A figure is that which is enclosed by one or more boundaries. A square is a four-sided figure having all its sides equal, and »И its angles right angles. A parallelogram...
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Syllabus of plane geometry, books 1-3, corresponding to Euclid ..., Llibres 1-6

Mathematical association - 1883
...15. A perpendicular to a straight line is a straight line that makes a right angle with it. DEF. 16. An acute angle is that which is less than a right angle. DEF. 17. An obtuse angle is that which is greater than one right angle, but less than two right angles....
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The Practical Teacher, Volum 2

1883
...inclination of two lines to one another in » plane which meet together, but are not in the same direction. A figure is that which is enclosed by one or more boundaries. A square is a four-sided figure having all its sides equal, and ill its angles right angles. A parallelogram...
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The elements of plane geometry, Volum 1

Mathematical association - 1884
...perpendicular to a straight line is a straight line that makes a right angle with it. C 18 DEF. 1 2. An acute angle is that which is less than a right angle. DEF. 13. An obtuse angle is that which is greater than one right angle, but less than two right angles....
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The Elements of Plane Geometry ...

Association for the improvement of geometrical teaching - 1884
...n. A perpendicular to a straight line is a straight line that makes a right angle with it. DEF. 1 2. An acute angle is that which is less than a right angle. DEF. 13. An obtuse angle is that which is greater than one right angle, but less than two right angles....
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An introduction to the Elements of Euclid, being a familiar ..., Part 1

Stephen Hawtrey - 1884 - 155 pągines
...following definitions: Definition 13.—A term or boundary is the extremity of anything. Definition 14.—A figure is that which is enclosed by one or more boundaries. The ' figure' so introduced is the Circle, which is thus defined: Definition 15.—A circle is a plane...
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An introduction to geometry, consisting of Euclid's Elements, book ..., Volum 1

Euclides - 1884
...called a perpendicular to it. 11. An obtuse angle is that which is greater than a right angle. 12. An acute angle is that which is less than a right angle. 'Adjacent' means lying next to, from the Latin ad, to, and/awo, I lie. Adjacent angles have one of...
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Stewart's specific subjects. Euclid. [1st] (-3rd stage). [With 2 issues of ...

Stewart W. and co - 1884
...acute angle if less than a right angle. XIII. A term or boundary is the extremity of anything. XIV. A figure is that which is enclosed by one or more boundaries. XV. A circle is a plane figure contained by one line, called the circumference, such that all straight...
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The text of Euclid's geometry, book 1, uniformly and systematically arranged ...

Euclides - 1884
...called a perpendicular to it. XL An obtuse angle is that which is greater than a right angle. XII. An acute angle is that which is less than a right angle. XIII. A term or boundary, is the extremity of anything. XIV. A figure is that which is enclosed by...
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The Harpur Euclid: An Edition of Euclid's Elements

Edward Mann Langley, W. Seys Phillips - 1890 - 515 pągines
...called a Perpendicular to it. 11. An Obtuse Angle is that which is greater than a right angle. 12. An Acute Angle is that which is less than a right angle. 13. A Term or Boundary is the extremity of anything. 14. A Figure is that which is inclosed by one...
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