Plane and Spherical Trigonometry and Mensuration

a. c. log altitude angle is equal arc increases Arithmetic base becomes cents characteristic circular co-sine complement cosec Cotang decimal decreases denote diagonal diameter difference divided edge entire surface escribed circles estimated Examples find the area find the volume formulas fourth quadrant functions Geometry given gives greater Hence included angle increases from 90 increases numerically inscribed Introducing length less logarithm M. M. Cosine M. M. Sine mantissa measured minus natural negative opposite opposite angle opposite side origin passes perpendicular plane polygon positive principles Problem proportion Proposition Prove pyramid radius reducing regular remaining required the area respectively right angle secant segment side sin b sin solution species sphere spherical triangle square Substituting supplement Tang tangent third triangle values vers volume