A school Euclid, being books i. & ii. of Euclid's Elements, with notes by C. Mansford1874 |
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Página 99
... falls , and the staight line intercepted without the triangle , between the perpendicular and the obtuse angle . Let ABC be an obtuse - angled triangle , having 1 , 2. the obtuse angle ACB , and from the point A let AD be drawn ...
... falls , and the staight line intercepted without the triangle , between the perpendicular and the obtuse angle . Let ABC be an obtuse - angled triangle , having 1 , 2. the obtuse angle ACB , and from the point A let AD be drawn ...
Página 100
... fall on it from the opposite angle , and the acute angle . Let ABC be any triangle , and the angle at B 1 , 2 . an acute angle ; and on BC one of the sides containing it , let fall the perpendicular AD from the opposite angle upon BC or ...
... fall on it from the opposite angle , and the acute angle . Let ABC be any triangle , and the angle at B 1 , 2 . an acute angle ; and on BC one of the sides containing it , let fall the perpendicular AD from the opposite angle upon BC or ...
Página 112
... fall on the sides of an equilateral triangle from any point within it is constant . 94. Inscribe a square in a given rhombus . 95. Two rectangles have equal areas and equal perimeters : shew that they are equal in all respects . 96. The ...
... fall on the sides of an equilateral triangle from any point within it is constant . 94. Inscribe a square in a given rhombus . 95. Two rectangles have equal areas and equal perimeters : shew that they are equal in all respects . 96. The ...
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A School Euclid, Being Books I. & II. of Euclid's Elements, with Notes by C ... Euclides Sin vista previa disponible - 2015 |
Términos y frases comunes
AC is equal adjacent angles alternate angles angle ABC angle ACB angle AGH angle BAC angle BCD angle EDF angle equal angles are equal angles CEA axioms base BC bisect centre circle coincide Const diagonals diameter double equal sides equal to BC equal to twice equilateral triangle Euclid exterior angle fore four right angles given point given rectilineal angle given straight line gnomon half a right hypotenuse interior and opposite isosceles triangle join less Let ABC Let the straight obtuse opposite angle opposite sides parallel to CD parallelogram parallelogram ABCD perpendicular produced prop quadrilateral rectangle AC rectangle contained remaining angle rhombus right angles right-angled triangle shew side BC sides equal square described square on AC THEOREM third angle triangle ABC triangle DEF truths twice the rectangle unequal