## Mathematical Tables ... |

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according altitude angle applying arch axis base becomes calculation cent centre circle column common complement contained corresponding Cosec Cosine Cosine Secant Cotang Cotang decimal Demonstration described determined diameter difference distance divided draw equal equation evident expressed feet figure formula frustum given gives greater half height Hence hypotenuse inches join latitude length less logarithm manner measuring miles minutes multiply N.cos natural nearly negative object oblique-angled observed obtain opposite perpendicular plane PROBLEM quadrant quantity radius rectangle remaining result right-angled rule Secant segment side AC sine solid content Solution spherical triangle square station subtract supplement suppose surface Tang tangent Theor THEOREM triangle ABC whole yards

### Popular passages

Page 65 - In any plane triangle, as the sum of any two sides is to their difference, so is the tangent of half the sum of the opposite angles to the tangent of half their difference. Let ABC be a triangle, of which the side AC is greater than AB,