A Royal Road to Geometry: Or, an Easy and Familiar Introduction to the Mathematics. ... By Thomas Malton. ...author, and sold, 1774 - 440 Seiten |
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Seite vii
... Triangle , are greater than the third ? is there a Perfon fo ignorant as not to know it ? it is implanted in us by Nature ; every common Porter knows it , or practices it every Day . Who ever faw one of them traverse two fides of a ...
... Triangle , are greater than the third ? is there a Perfon fo ignorant as not to know it ? it is implanted in us by Nature ; every common Porter knows it , or practices it every Day . Who ever faw one of them traverse two fides of a ...
Seite 13
... TRIANGLE has all its three Sides equal , to one another . DEF . 28. 2. An ISOSCELES TRIANGLE has only two equal Sides . AB and BC . DEF . 29. 3. A SCALENE TRIANGLE has all its Sides unequal . DEF . 30. 4. A RIGHT - ANGLED TRIANGLE A is ...
... TRIANGLE has all its three Sides equal , to one another . DEF . 28. 2. An ISOSCELES TRIANGLE has only two equal Sides . AB and BC . DEF . 29. 3. A SCALENE TRIANGLE has all its Sides unequal . DEF . 30. 4. A RIGHT - ANGLED TRIANGLE A is ...
Seite 9
... TRIANGLE has all its three Sides equal , to one another . DEF . 28. 2. An ISOSCELES TRIANGLE has only two equal Sides . AB and BC . DEF . 29. 3. A SCALENE TRIANGLE has all its Sides unequal . DEF . 30. 4. A RIGHT - ANGLED TRIANGLE A is ...
... TRIANGLE has all its three Sides equal , to one another . DEF . 28. 2. An ISOSCELES TRIANGLE has only two equal Sides . AB and BC . DEF . 29. 3. A SCALENE TRIANGLE has all its Sides unequal . DEF . 30. 4. A RIGHT - ANGLED TRIANGLE A is ...
Seite 13
... Triangle 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 Sides equal , to one another . DEF . 28. 2. An ISOSCELES TRIANGLE has only two ...
... Triangle 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 Sides equal , to one another . DEF . 28. 2. An ISOSCELES TRIANGLE has only two ...
Seite 19
... Triangle . " I know of no properties peculiar to fuch an acute - angled Triangle , that is not common to every Triangle ; for every Triangle has , neceffarily , two acute Angles . An equi- lateral Triangle is included in that Definition ...
... Triangle . " I know of no properties peculiar to fuch an acute - angled Triangle , that is not common to every Triangle ; for every Triangle has , neceffarily , two acute Angles . An equi- lateral Triangle is included in that Definition ...
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A Royal Road to Geometry: Or, an Easy and Familiar Introduction to the ... Thomas Malton Keine Leseprobe verfügbar - 2016 |
Häufige Begriffe und Wortgruppen
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Seite 118 - When you have proved that the three angles of every triangle are equal to two right angles...
Seite 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.
Seite 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.
Seite 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.
Seite 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.
Seite 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.
Seite 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.
Seite 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.
Seite 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.
Seite 118 - Angles, taken together, is equal to Twice as many Right Angles, wanting four, as the Figure has Sides.