A tetrahedron is a solid figure made up of three equilateral triangles as its four faces. [Please select]
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In a similar manner, four covertical equilateral triangles stand on a square base. [Please select]
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How is the equilateral arch formed and described. [Please select]
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The lancet, the equilateral, and the obtuse-angled arch. [Please select]
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These are the equilateral triangle, the square, and the regular hexagon. [Please select]
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If this decrease be allowed for, the curve obtained is an equilateral hyperbola. [Please select]
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The LANCET, or acute-pointed arch; the EQUILATERAL pointed arch; and the OBTUSE-ANGLED pointed arch. [Please select]
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The lancet arch is seldom seen; the equilateral arch is generally, though not always, used. [Please select]
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The question naturally arises, why the circle, the equilateral triangle and the square. [Please select]
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The drawings of the plans may be distinguished from each other by this difference, that theatres designed from squares are meant to be used by Greeks, while Roman theatres are designed from equilateral triangles. [Please select]
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His rays diverge through the firmament in straight lines as though forming an equilateral triangle, that is, to the fifth sign from the sun, no more, no less. [Please select]
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