 materially from the arcs which they subtend. Let the three angles of the spherical triangle be represented by A, B, C ; and their opposite sides by a, b, c ; and let a', b', c', represent the chords of these sides, which chords are supposed not to differ  Course of Civil Engineering: Comprising Plane Trigonometry, Surveying, and ... - Page 206by John Gregory - 1842Full view - About this book
 | Thomas Keith - 1810 - 476 pages
...them; to find the angle contained between the chords of these sides, supposing the chords not to differ materially from the arcs which they subtend. Let the...these sides, which chords are supposed not to differ essentially from the arcs. Then cos a=(cos A . sine b . sine c) + (cos b . cos c) the radius being... | |
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...,• tojind the angle contained between the chords of these, sides, supposing the chords not to differ materially from the arcs which they subtend. Let the...represented by A, B, c, and their opposite sides by a,b,c; and let a', V, c represent the chords of these sides, which chords are supposed not to differ... | |
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...angle contained between tin- i-luinlx y these sides, supposing the chords not to differ matrrinlly from the arcs which they subtend. Let the three angles of the spherical triangle he represented by A, B, (, and their opposite sides by a, b, c; and let a', b', d represent the chords... | |
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...TRIANGLES. 82. Let A CB be a right-angled triangle, the right angle being at A. Represent the angles by A, B, C, and their opposite sides by a, b, c. With a radius CE= 1, describe the arc EF, and draw the perpendicular ED; then ED = sin C, and CD=cosC.... | |
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