Elements of Geometry and Plane Trigonometry: With an Appendix, and Copious Notes and IllustrationsA. Constable & Company, 1817 - 432 Seiten |
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Ergebnisse 6-10 von 21
Seite 107
... triangle ACB , and conse- quently ( IV . 3. ) AB is equal to BF and FC , or AG and GC . Again , the triangles BAD ... equilateral triangle AOB , and repeat equal triangles about the vertex O ; these tri- angles will together compose the ...
... triangle ACB , and conse- quently ( IV . 3. ) AB is equal to BF and FC , or AG and GC . Again , the triangles BAD ... equilateral triangle AOB , and repeat equal triangles about the vertex O ; these tri- angles will together compose the ...
Seite 110
... equilateral triangle ACB , and again ( IV . 1. ) the isosceles triangle AOB , having its vertical angle equal to the half of ACB , and repeat this triangle AOB about the point O ; a regular dodecagon will be thus formed . For ACB being ...
... equilateral triangle ACB , and again ( IV . 1. ) the isosceles triangle AOB , having its vertical angle equal to the half of ACB , and repeat this triangle AOB about the point O ; a regular dodecagon will be thus formed . For ACB being ...
Seite 113
... equilateral triangle inscribed in a circle to any point in the opposite circumference , is equal to the two chords inflected from the same point to the extremities of the base . Let ABC be an equilateral triangle inscribed in a cir- cle ...
... equilateral triangle inscribed in a circle to any point in the opposite circumference , is equal to the two chords inflected from the same point to the extremities of the base . Let ABC be an equilateral triangle inscribed in a cir- cle ...
Seite 114
... equilateral triangle , is e- qual ( I. 30. cor . 1. ) to the third part of two right angles . But the triangle ADE being isosceles by construction , the angles DAE , DEA at its base are equal ( I. 10. ) , and each of them is , therefore ...
... equilateral triangle , is e- qual ( I. 30. cor . 1. ) to the third part of two right angles . But the triangle ADE being isosceles by construction , the angles DAE , DEA at its base are equal ( I. 10. ) , and each of them is , therefore ...
Seite 118
... triangle ABO ( I. 1. cor . ) , and repeat the equal trian- gles about the vertex O : These triangles will compose a hexagon . For the triangle ABO , being equilateral , each of its an- gles AOB is the third part of two right angles ...
... triangle ABO ( I. 1. cor . ) , and repeat the equal trian- gles about the vertex O : These triangles will compose a hexagon . For the triangle ABO , being equilateral , each of its an- gles AOB is the third part of two right angles ...
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Elements of Geometry, and Plane Trigonometry: With an Appendix, and Very ... University Professor Emeritus John Leslie, Sir Keine Leseprobe verfügbar - 2016 |
Häufige Begriffe und Wortgruppen
ABCD adjacent angle altitude angle ABC angle ADB angle BAC base AC bisect centre chord circle circumference consequently construction contained angle cosine decagon denote describe diameter difference distance diverging lines divided draw equal to BC equilateral triangle equivalent to twice evidently exterior angle given greater half Hence hypotenuse inscribed isosceles triangle join let fall likewise measure parallel perpendicular point G polygon PROB PROP Proposition quadrilateral figure quantities radius ratio rectangle rectangle contained rectilineal figure rhomboid right angles right-angled triangle Scholium segments semicircle semiperimeter sequently side AC sinB sine square of AB square of AC straight line tangent THEOR tion triangle ABC twice the rectangle twice the square vertex vertical angle whence Wherefore