A Treatise of Plane Trigonometry, and the Mensuration of Heights and Distances: To which is Prefixed a Summary View of the Nature and Use of Logarithms. Adapted to the Method of Instruction in Schools and AcademiesM.H. Newman & Company, 1848 - 153 páginas |
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Página 150
... Polygons , The double lines of chords , of sines , and of tangents to 45 ° , are all of the same radius ; beginning at the central point , and terminating near the other extremity of each scale ; the chords at 60 ° , the sines at 90 ...
... Polygons , The double lines of chords , of sines , and of tangents to 45 ° , are all of the same radius ; beginning at the central point , and terminating near the other extremity of each scale ; the chords at 60 ° , the sines at 90 ...
Página 151
... polygons is numbered 4 , 5 , 6 , & c . , from the extremity of each scale , towards the centre . B ' The simple principle on which the utility of these several pairs of lines depends is this , that the sides of similar trian- gles are ...
... polygons is numbered 4 , 5 , 6 , & c . , from the extremity of each scale , towards the centre . B ' The simple principle on which the utility of these several pairs of lines depends is this , that the sides of similar trian- gles are ...
Página 152
... polygons contains the chords of arcs of a cir- cle which is divided into equal portions . Thus , the distances from ... polygon , or to inscribe one in a given circle . Thus , to make a pentagon with the transverse distance from 6 to 6 ...
... polygons contains the chords of arcs of a cir- cle which is divided into equal portions . Thus , the distances from ... polygon , or to inscribe one in a given circle . Thus , to make a pentagon with the transverse distance from 6 to 6 ...
Página 6
... polygon . A regular polygon has all its sides equal , and all its angles equal . III . The height of a triangle is the length of a perpen- dicular , drawn from one of the angles to the opposite side ; as CP . The height of a four sided ...
... polygon . A regular polygon has all its sides equal , and all its angles equal . III . The height of a triangle is the length of a perpen- dicular , drawn from one of the angles to the opposite side ; as CP . The height of a four sided ...
Página 14
... POLYGON . 13. DIVIDE THE WHOLE FIGURE INTO TRIANGLES , BY DRAW- ING DIAGONALS , AND FIND THE SUM OF THE AREAS OF THESE TRIANGLES . ( Alg . 394. ) If the perpendiculars in two triangles fall upon the same diagonal , the area of the ...
... POLYGON . 13. DIVIDE THE WHOLE FIGURE INTO TRIANGLES , BY DRAW- ING DIAGONALS , AND FIND THE SUM OF THE AREAS OF THESE TRIANGLES . ( Alg . 394. ) If the perpendiculars in two triangles fall upon the same diagonal , the area of the ...
Otras ediciones - Ver todas
A Treatise of Plane Trigonometry, and the Mensuration of Heights and ... Jeremiah Day Vista completa - 1855 |
A Treatise of Plane Trigonometry, and the Mensuration of Heights and ... Jeremiah Day Sin vista previa disponible - 2016 |
A Treatise Of Plane Trigonometry, And The Mensuration Of Heights And ... Jeremiah Day Sin vista previa disponible - 2008 |
Términos y frases comunes
ABCD altitude axis base breadth bung diameter calculated capacity cask centre circular sector circular segment circumference convex surface cosecant Cosine Cotang cube decimal dicular difference divided earth equal to half figure find the area find the SOLIDITY frustum given sides gles greater head diameter hypothenuse inscribed lateral surface length less line of chords logarithm measure miles MULTIPLY THE SUM number of degrees number of sides oblique parallel parallelogram parallelopiped perpen perpendicular perpendicular height plane prism PROBLEM product of half proportion pyramid quadrant quantity quotient radius regular polygon regular solids right angled triangle right cone right cylinder right prism rods root secant sector sine sphere square feet subtracted tables tabular Tang tangent term Theorem Thomson's Legendre trapezium triangle ABC Trig trigonometry ullage whole surface wine gallons zone
Pasajes populares
Página 39 - CUBIC MEASURE 1728 cubic inches = 1 cubic foot 27 cubic feet = 1 cubic yard...
Página 19 - A diameter of a circle is a straight line drawn through the centre, and terminated both ways by the circumference.
Página 51 - The VERSED SINE of an arc is that part of the diameter which is between the sine and the arc. Thus, BA is the versed sine of the arc AG.
Página 101 - NB In the following table, in the last nine columns of each page, where the first or leading figures change from 9's to O's, points or dots are introduced instead of the O's through the rest of the line, to catch the eye, and to indicate that fronc '>ence the annexed first two figures of the Logarithm in the colvvran stand in the next lower line. N.
Página 47 - The circumference of every circle, whether great or small, is supposed to be divided into 360 equal parts, called degrees ; and every degree into 60 parts, called minutes ; and every minute into 60 seconds.
Página 55 - ... the square of the hypothenuse is equal to the sum of the squares of the other two sides.
Página 4 - QUADRANT. NB The minutes in the left-hand column of each page, increasing downwards, belong to the degrees at the top ; and those increasing upwards, in the right-hand column, belong to the degrees below.
Página 12 - We have then this important property, j -f 14. The DECIMAL PART of the logarithm of any number is the same, as that of the number multiplied or divided by 10, 100, 1000, &c.
Página 34 - But the difference of two squares is equal to the product of the sum and difference of their roots.
Página 18 - ... 1.84148. 31. To find the. logarithm of a VULGAR FRACTION. From the nature of a vulgar fraction, the numerator may be considered as a dividend, and the denominator as a divisor; in other words, the value of the fraction is equal to the quotient, of the numerator divided by the denominator.