## The Elements of Spherical Trigonometry |

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### Common terms and phrases

a+b+c a+c-b adjacent Applied AUTHOR base becomes called centre circle circular consequently contained cos b cos cos C sin cosē cosc cosines cot a cot determined draw ENGINEERING equal equation excess extremes conjunct extremes disjunct faces find the angle formula four give given greater hence hypothenuse inclination lines log cos log cot log sin logarithm Mathematical measure meet middle observing opposite angles perpendicular Plates polar triangle pole polygon polyhedron PRACTICE Price produce quadrant quantities radius reducing Relation remaining respect right angles right-angled triangle RUDIMENTARY rule separated Series side AC sin a sin sin c cos sinē sines solid angle solution sphere spherical triangle Substituting surface taking the complements third three angles three sides TREATISE values

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Page 2 - JOHN \YEALK (of which Prospectuses have been extensively issued), have realised the anticipated success from that portion of the public who seek the attainment of those objects of Science which belong to the business of life, and the highest and most useful subjects in the Elements of Art and Science. Pursuing the same path, to render further aid to public instruction, and to direct the attention of the Heads and Principals of the several Colleges and Mr.

Page 55 - The surface of a spherical triangle is measured by the excess of the sum of its three angles above two right angles, multiplied by the tri-rectangular triangle.

Page 2 - CONSTRUCTING CRANES for the Erection of Buildings and for Hoisting Goods, by JOSEPH GLYNN, FRS, CE , TREATISE ON THE STEAM ENGINE, by DR. LARDNER, LL.D., Editor of the " Cabinet Cyclopaedia

Page 4 - ... cos a = cos b cos с + sin b sin с cos A ; (2) cos b = cos a cos с + sin a sin с cos в ; ^ A. (3) cos с = cos a cos b + sin a sin b cos C.

Page 3 - ... inestimable value, and too many attempts cannot be made to render them perfect and complete." To carry out this new Series successfully and methodically, the most eminent men in scholastic erudition and elementary instruction have been selected, under the able management and editing of Mr. JAMES...

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Page 46 - He did not even understand the rule I made use of for finding the excess of the sum of the three angles of a spherical triangle above...