A Course of Mathematics: For the Use of Academies, as Well as Private Tuition ...S. Campbell & son, E. Duyckinck, 1822 - Mathematics |
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Page 38
... polygon being 236 yards , and that part of it which is terminated by the curtain and shoulder being 146 yards 1 foot 4 inches ; what then was the length of the face of the bastion ? Ans . 89 yds 1 ft 8 in . COMPOUND MULTIPLICATION ...
... polygon being 236 yards , and that part of it which is terminated by the curtain and shoulder being 146 yards 1 foot 4 inches ; what then was the length of the face of the bastion ? Ans . 89 yds 1 ft 8 in . COMPOUND MULTIPLICATION ...
Page 277
... Polygons : and they receive other particular names , according to the number of their sides or angles , Thus , 41. A Pentagon is a polygon of five sides ; a Hexagon , of six sides ; a Heptagon , seven ; an Octagon , eight ; a Nona- gon ...
... Polygons : and they receive other particular names , according to the number of their sides or angles , Thus , 41. A Pentagon is a polygon of five sides ; a Hexagon , of six sides ; a Heptagon , seven ; an Octagon , eight ; a Nona- gon ...
Page 278
... Polygon has all its sides and all its angles equal . If they are not both equal , the polygon is Irregular . 43. An Equilateral Triangle is also a Regular Figure of three sides , and the Square is one of four , the former being also ...
... Polygon has all its sides and all its angles equal . If they are not both equal , the polygon is Irregular . 43. An Equilateral Triangle is also a Regular Figure of three sides , and the Square is one of four , the former being also ...
Page 291
... polygon into as many tri- angles as it has sides . Now the sum of the three angles of each of these triangles , is equal to two right angles ( th . 17 ) ; therefore the sum of the angles of all the triangles is equal to twice as many ...
... polygon into as many tri- angles as it has sides . Now the sum of the three angles of each of these triangles , is equal to two right angles ( th . 17 ) ; therefore the sum of the angles of all the triangles is equal to twice as many ...
Page 292
... polygon , is equal to four right angles ( corol . 3 , th . 6 ) , and must be deducted out of the former sum . Hence it follows that the sum of all the inward angles of the polygon alone A + B + C + D + E , is equal to twice as many ...
... polygon , is equal to four right angles ( corol . 3 , th . 6 ) , and must be deducted out of the former sum . Hence it follows that the sum of all the inward angles of the polygon alone A + B + C + D + E , is equal to twice as many ...
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Common terms and phrases
ABCD abscisses altitude arithmetical arithmetical mean arithmetical progression axis base bisected breadth ca² CD² centre chord circle circumference circumscribed common cone consequently cube root curve cylinder DE² decimal denominator denotes diameter difference distance divide divisor draw ellipse equation equiangular EXAM EXAMPLES feet figure fraction frustum Geom geometrical geometrical progression given number gives greater half height Hence improper fraction inches inscribed length Let ABC line drawn logarithm manner measure multiply ordinates parabola parallel parallelogram perimeter perpendicular plane polygon prism PROBLEM proportional Q. E. D. Corol Q. E. D. THEOREM quantity QUEST quotient radius ratio rectangle Reduce right angles right line right-angled triangle rule Scholium segment side Ac sine sphere square root subtract surd surface tangent theor theref triangle ABC VULGAR FRACTIONS yards
Popular passages
Page 312 - THE angle formed by a tangent to a circle, and a chord drawn from the point of contact, is equal to the angle in the alternate segment.
Page 292 - All the interior angles of any rectilineal figure, together with four right angles, are equal to twice as many right angles as the figure has sides.
Page 2 - The sum of the three angles of any triangle is equal to two right angles, this is a Theorem, the truth of which is demonstrated by Geometry.
Page 189 - To reduce a mixed number to an improper fraction, Multiply the whole number by the denominator of the fraction, and to the product add the numerator; under this sum write the denominator.
Page 293 - EBF, there are two angles in the one equal to two angles in the other, each to each ; and the...
Page 18 - The number to divide by, is the Divisor.- — And the number of times the dividend contains the divisor, is called the Quotient.
Page 280 - Similar figures, are those that have all the angles of the one equal to all the angles of the other, each to each, and the sides about the equal angles proportional.
Page 157 - Thus, the index or logarithm of 4, in the above series, is 2 ; and if this number be multiplied by 3, the product will be = 6 ; which is the logarithm of 64, or the third power of 4. And, if the logarithm of any number be divided by the index of its root, the quotient will be equal to the logarithm of that root.
Page 81 - Distinguish the given number into periods of two figures each, by putting a point over the place of units, another over the place of hundreds, and so on over every second figure, both to the left hand in integers, and to the right hand in decimals, which points will show the number of figures the root will consist of.
Page 278 - A Pentagon is a polygon of five sides ; a Hexagon, of six sides ; a Heptagon, seven; an Octagon, eight; a Nonagon, nine ; a Decagon, ten ; an Undecagon, eleven ; and 4 Dodecagon, twelve sides.