A Royal Road to Geometry: Or, an Easy and Familiar Introduction to the Mathematics. ... By Thomas Malton. ...author, and sold, 1774 - 440 sider |
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Resultat 1-5 av 45
Side 9
... less than the Right Angle ABD , is therefore called Acute . DEF . 13. An OBTUSE ANGLE is greater than a Right one . If the Line BE falls on the other Side of the Per- pendicular , BD ; the Angle A B E is Obtufe . - G C F B A B D E A B ...
... less than the Right Angle ABD , is therefore called Acute . DEF . 13. An OBTUSE ANGLE is greater than a Right one . If the Line BE falls on the other Side of the Per- pendicular , BD ; the Angle A B E is Obtufe . - G C F B A B D E A B ...
Side 12
... POINT OF CONTACT . As AB , touching the Circle in B. DEF . 26. A TRIANGLE is à Plane Figure bounded by three Right Lines , and contains as many Angles . N. B. Not N. B. Not less than three Right Lines can include 12 DEFINITIONS .
... POINT OF CONTACT . As AB , touching the Circle in B. DEF . 26. A TRIANGLE is à Plane Figure bounded by three Right Lines , and contains as many Angles . N. B. Not N. B. Not less than three Right Lines can include 12 DEFINITIONS .
Side 13
... less than three Right Lines can include a Space and form a Figure ; wherefore , a Triangie is the first of all Right - lined Figures . Triangles are of various kinds . As follows . DEF . 27. 1. An EQUILATERAL TRIANGLE has all its three ...
... less than three Right Lines can include a Space and form a Figure ; wherefore , a Triangie is the first of all Right - lined Figures . Triangles are of various kinds . As follows . DEF . 27. 1. An EQUILATERAL TRIANGLE has all its three ...
Side 56
... less than a fourth part of the Time . Each Triangle ( of which there are fix , in this Figure ) goes through two operations , viz . 20th and 23d of this ; and are add- ed , Jeparately into one Sum , or Rectangle . Whereas , by this me ...
... less than a fourth part of the Time . Each Triangle ( of which there are fix , in this Figure ) goes through two operations , viz . 20th and 23d of this ; and are add- ed , Jeparately into one Sum , or Rectangle . Whereas , by this me ...
Side 68
... less than the leaft of the three ; but if another mean Proportional is required , to three Lines given , as it must be between the two Extremes of the three ; fo it will be , either greater or less than the middle Line , as that is ...
... less than the leaft of the three ; but if another mean Proportional is required , to three Lines given , as it must be between the two Extremes of the three ; fo it will be , either greater or less than the middle Line , as that is ...
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A Royal Road to Geometry: Or, an Easy and Familiar Introduction to the ... Thomas Malton Ingen forhåndsvisning tilgjengelig - 2016 |
Vanlige uttrykk og setninger
ABCD alfo alfo equal alſo Altitudes Angle ABC Area Bafe Baſe becauſe bifected Center Chord Circle circumfcribing Circumference Cone conf confequently Conftruction contains cuting Cylinder defcribe Demonftration Diagonal Diameter divided Divifions draw drawn Ellipfis equal Angles equiangular Euclid external Angle fame manner fame Plane fame Ratio fecond fhall Figure fimilar fince firft firſt fome fquare fubtends fuch fuppofe Geometry given Line greater half Heptagon Ifofceles Inches infcribed interfecting laft lefs manifeft mean Proportional meaſure multiplied neceffary Nonagon oppofite parallel Parallelogram Parallelopiped Pentagon perpendicular pleaſure Point Poligon Prifm Priſm Prob Propofition Pyramid Quantities Radius reaſon Rect Rectangle refpectively Right Angles Right Line Segment Sides Sphere Square Tangent THEOREM thofe thoſe Trapezium Triangle ABC uſe wherefore whofe
Populære avsnitt
Side 118 - When you have proved that the three angles of every triangle are equal to two right angles...
Side 215 - 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.
Side 279 - EG, let fall from a point in the circumference upon the diameter, is a mean proportional between the two segments of the diameter DS, EF (p.
Side 278 - IN a right-angled triangle, if a perpendicular be drawn from the right angle to the base, the triangles on each side of it are similar to the whole triangle, and to one another.
Side 180 - From this it is manifest, that if one angle of a triangle be equal to the other two, it is a right angle, because the angle adjacent to it is equal to the same two; and when the adjacent angles are equal, they are right angles.
Side 242 - To express that the ratio of A to B is equal to the ratio of C to D, we write the quantities thus : A : B : : C : D; and read, A is to B as C to D.
Side 155 - In any triangle, if a line be drawn from the vertex at right angles to the base; the difference of the squares of the sides is equal to the difference of the squares of the segments of the base.
Side 154 - In any isosceles triangle, the square of one of the equal sides is equal to the square of any straight line drawn from the vertex to the base plus the product of the segments of the base.
Side 244 - Ratios that are the same to the same ratio, are the same to one another. Let A be to B as C is to D ; and as C to D, so let E be to F.
Side 118 - Angles, taken together, is equal to Twice as many Right Angles, wanting four, as the Figure has Sides.