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The SECANT of an arc, is a straight line drawn from the center, through one end of the arc, and extended to the tangent which is drawn from the other end.
An Introduction to the Theory and Practice of Plain and Spherical ... - Page 28
by Thomas Keith - 1826 - 442 pages

## An Introduction to the Theory and Practice of Plane and Spherical ...

Thomas Keith - 1810 - 478 pages
...tangent, is the half of the arc BF. that that arc,* The tangent of 45" is equal to the radiust\ and an arf of 90° has no tangent. (M) The secant of an arc is...equal to the secant of the supplement of that arc. J The secant of 45° is equal to double the sine of4-o", § and an arc of 90" has no secant. (N) The...

## A Treatise of Plane and Spherical Trigonometry: In Theory and Practice ...

Francis Nichols - 1811 - 162 pages
...arc AB, or of the angle ACB; and At is the tangent of the arc AH6, or of the angle AC*. 19. DEF. 7- The secant of an arc is a straight line drawn from, the centre through the end of the arc, and produced tiU it meets the tangent. Thus, CT is the secant of the arc...

## An Easy Introduction to the Mathematics: In which the Theory and ..., Volume 2

Charles Butler - 1814 - 528 pages
...that arc. ' Thus, EH (the tangent of EB) is the co-tangent of the arc AB, and of the angle ACS. 18. THE SECANT of an arc, is a straight line drawn from the centre, through the end of the arc, and produced till it meet the tangent. Thus, CT is the secant of the arc...

## Easy Introduction to Mathematics, Volume 2

Charles Butler - 1814 - 582 pages
...radius (6. 1.) Thus, EH (the tangent of EB) is the co-tangent of the arc ', and of the angle ACB. .8. THE SECANT of an arc, is a straight line drawn from the ttre, through the end of the arc, and produced till it mee.t •~ tangent. TTius, CT is the secant...

## A Treatise of Plane Trigonometry: To which is Prefixed, a Summary View of ...

Jeremiah Day - 1815 - 172 pages
...line drawn from the centre through the other end. Thus AD (Fig. 3.) is the tangent of the arc AG. 85. The SECANT of an arc, is a straight line drawn from the centre, through one end of the arc, and extended to the tangent which is drawn from the other end. Thus CD...

## A Practical Application of the Principles of Geometry to the Mensuration of ...

Jeremiah Day - 1815 - 388 pages
...line drawn from the centre through the other end. Thus AD (Fig. 3.) is the tangent of the arc AG. 85. The SECANT of an arc, is a straight line drawn from the centre, through one end of the arc, and extended to the tangent which is drawn from the other end. Thus CD...

## The Second [-fifth and Sixth] Part of A Course of Mathematics: Adapted to ...

Jeremiah Day - 1824 - 440 pages
...tine drawn from the centre through the other end. Thus AD (Fig. 3.) is the tangent of the arc AG. 85. The SECANT of an arc, is a straight line drawn from, the centre, through one end of the arc, and extended to the tangent which is drawn from the other end. Thus CD...

## A Treatise of Plane Trigonometry: To which is Prefixed a Summary View of the ...

Jeremiah Day - 1831 - 418 pages
...line drawn from the center through the other end. Thus AD (Fig. 3.) is the tangent of the arc AG. 85. The SECANT of an arc, is a straight line drawn from the center, through one end of the arc, and extended to the tangent which is drawn from the other end....