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A rhombus is that which has all its sides equal, but its angles are not right angles.
The First Six Books with Notes - Página 3
por Euclid - 1822 - 179 páginas
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## The school Euclid: comprising the first four books, by A.K. Isbister

Euclides - 1862
...acute-angled triangle, is that which has three acute angles. XXX. Of four-sided figures, a square is that which has all its sides equal, and all its angles right angles. XXXI. An oblong, is that which has all its angles right angles, but has not all its sides equal. XXXII....
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## The elements of plane geometry; or, The first six books of Euclid, ed. by W ...

Euclides - 1863
...triangle is that which has three acute ./\ angles. ^-—t XXX. Of four-sided figures, a square is that which has all its sides equal, and all its angles right angles. XXXI. An oblong is that which has all its angles right angles, I but has not all its sides equal. '...
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## The college Euclid: comprising the first six and the parts of the eleventh ...

Euclides - 1865
...acute-angled triangle, is that which has three acute angles. B3 XXX. Of four-sided figures, a square is that which has all its sides equal, and all its angles right angles. XXXL An oblong, is that which has all its angles right angles, but has not all its sides equal. XXXIL...
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## An English primer; compiled under the superintendence of E.C. Lowe

Edward Clarke Lowe - 1866
...acute-angled triangle is that which has three acute angles. 30. Of four-sided figures, a square is that which has all its sides equal, and all its angles right angles. 31. An oblong is that which has all its angles right angles, but not all its sides equal. 32. A rhombus...
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## The Elements of Euclid for the Use of Schools and Colleges: Comprising the ...

Euclid, Isaac Todhunter - 1867 - 400 páginas
...acute-angled triangle is that which has three acute angles. Of four-sided figures, 30. A square is that which has all its sides equal, and all its angles right angles : 31. An oblong is that which has all its angles right angles, but not all its sides equal : 32. A...
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## The Elements of Euclid for the Use of Schools and Colleges: Comprising the ...

Euclid, Isaac Todhunter - 1867 - 400 páginas
...acute-angled triangle is that which has three acute angles. Of four-sided figures, 30. A square is that which has all its sides equal, and all its angles right angles : 31. An oblong is that which has all its angles right angles, but not all its sides equal : 32. A...
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## Right lines in their places; or, The first principles of drawing and design ...

Ellis A. Davidson - 1869
...board, and the pupil has been called upon to believe that " of four-sided figures, a square is that which has all its sides equal, and all its angles right angles." He is told that the diagonals of a square or other rectangle will be equal. He sees they are not so...
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## The Educational Speeches of the Hon'ble John Bruce Norton

John Bruce Norton - 1870 - 329 páginas
...all that, especially when the rudiments are mastered. Euclid always to speak of a square as " that figure which has all its sides equal, and all its angles right angles;" or to avoid the term circle by a round about allusion to it as " a plain figure contained by one line...
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## Euclid's Elements of Geometry

Euclid - 1872 - 261 páginas
...rectilineal figure which is contained by four right lines. 30. A parallelogram, is a quadrilateral figure, whose opposite sides are parallel. 31. A square is a quadrilateral figure, which is equilateral and equiangular. 32. Kectilineal figures which have more than four sides, are called...
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## A school Euclid, being books i. & ii. of Euclid's Elements, with notes by C ...

Euclides - 1874
...acute-angled triangle is that which has three acute angles. 30. Of four-sided figures, a square is that which has all its sides equal, and all its angles right angles. 81. An oblong is that which has all its angles right angles, but not all its sides equal. 32. A rhombus...
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