A treatise on mensuration, both in theory and practice. The second edition, with many additionsG. G. J.&J. Robinson, 1788 - 16 pages |
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Results 1-5 of 60
Page 5
... fix fides ; a heptagon , seven ; an octagon , eight ; a nonagon , nine ; a decagon , ten ; an unde- cagon , eleven ; and a dodecagon has twelve fides . 42. A regular polygon has all its fides and all its angles equal . — If they are not ...
... fix fides ; a heptagon , seven ; an octagon , eight ; a nonagon , nine ; a decagon , ten ; an unde- cagon , eleven ; and a dodecagon has twelve fides . 42. A regular polygon has all its fides and all its angles equal . — If they are not ...
Page 20
... fix times round the circumference , marking out the angular points , which connect with right lines . PROBLEM XXV . To make an Octagon on a given Line AB . per- G F ...... E B D Erect AF and BE pendicular to AB . - Produce AB both ways ...
... fix times round the circumference , marking out the angular points , which connect with right lines . PROBLEM XXV . To make an Octagon on a given Line AB . per- G F ...... E B D Erect AF and BE pendicular to AB . - Produce AB both ways ...
Page 25
... fix times round will form the hexagon , B C A F D or divide the circumference into fix equal parts , each containing 60 degrees . - The fecond of thefe c , will give Ac the fide of the trigon or equilateral triangle ; and the arc AC one ...
... fix times round will form the hexagon , B C A F D or divide the circumference into fix equal parts , each containing 60 degrees . - The fecond of thefe c , will give Ac the fide of the trigon or equilateral triangle ; and the arc AC one ...
Page 34
... Fix one foot of the compaffes at 2 of the greatest divifions , at the bottom of the fcale , and extend the other to 4 of the fecond divifions , * Only 4 parts are here drawn , for want of room . along along the bottom ; then , for the 3 ...
... Fix one foot of the compaffes at 2 of the greatest divifions , at the bottom of the fcale , and extend the other to 4 of the fecond divifions , * Only 4 parts are here drawn , for want of room . along along the bottom ; then , for the 3 ...
Page 58
... fix general theorems . 1. A = { » × ( 4 √ 2 − 2 √ √ 1 = 2 . n A = - 105 - × ( 144√2 — 21 A = n X : 3. a = r : a a3 + ↑ 2.373 A 72 -- A3 2.323 4 . A A3 2-39 3.5a7 a ) nearly , Or a2 a a3 I- " 2r . ) more nearly , + 3as 2-4-5 + 2.4 ...
... fix general theorems . 1. A = { » × ( 4 √ 2 − 2 √ √ 1 = 2 . n A = - 105 - × ( 144√2 — 21 A = n X : 3. a = r : a a3 + ↑ 2.373 A 72 -- A3 2.323 4 . A A3 2-39 3.5a7 a ) nearly , Or a2 a a3 I- " 2r . ) more nearly , + 3as 2-4-5 + 2.4 ...
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abfcifs againſt alfo altitude angle area fine area bafe baſe becauſe breadth bung cafe cafk chains circle whofe circumference cofine cone confequently conjugate Corol corollary curve defcribe diagonal dimenfions diſtance divided divifion draw ellipfe equal expreffed expreffion faid fame example fecond fection feet fegment feries fhall fides figure fimilar fince find the Area firft firſt fluxion folid fome fphere fpheroid fpindle fquare fruftum ftands ftation fubtract fuch fuppofing furface gallons given greateſt half hence hoof hyperbola inches inftrument inſtead interfecting laft laſt problem lefs length meaſure multiply muſt nearly oppofite ordinate parabola paraboloid parallel perpendicular plane prob quotient radius rule SCHOLIUM ſhall Sliding Rule tangent thefe theſe thofe thoſe tranfverfe trapezium triangle uſed Verf whofe whofe height whole whoſe ΙΟ