Elements of Geometry: Containing the First Six Books of Euclid, with a Supplement on the Quadrature of the Circle, and the Geometry of Solids; to which are Added, Elements of Plane and Spherical TrigonometryW.E. Dean, 1836 - 311 páginas |
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Página 6
... sides , the simplest of all , is called a triangle ; that of four sides , a quadrilateral ; that of five , a pentagon ; that of six , a hexagon ; and so on . 18. Of three sided figures , an equilateral triangle is that which has three ...
... sides , the simplest of all , is called a triangle ; that of four sides , a quadrilateral ; that of five , a pentagon ; that of six , a hexagon ; and so on . 18. Of three sided figures , an equilateral triangle is that which has three ...
Página 7
... sides pa- rallel , but all its sides are not equal , nor its angles right angles . 28. And , lastly , the trapezoid , only two of whose sides are parallel . 29. All other four sided figures are usually called trapeziums . 30. A diagonal ...
... sides pa- rallel , but all its sides are not equal , nor its angles right angles . 28. And , lastly , the trapezoid , only two of whose sides are parallel . 29. All other four sided figures are usually called trapeziums . 30. A diagonal ...
Página 9
... sides and the included angle in the one , equal to two sides and the included angle in the other , the triangles will be identical , or equal in all respects . Let ABC , DEF be two triangles which have the two sides AB , AC equal to the ...
... sides and the included angle in the one , equal to two sides and the included angle in the other , the triangles will be identical , or equal in all respects . Let ABC , DEF be two triangles which have the two sides AB , AC equal to the ...
Página 10
... sides and the contained angle of the one equal to two sides and the contained angle of the other ; namely , the side AC equal to BC , the angle ACD equal to BCD , and the side CD common ; therefore , these two triangles are identical ...
... sides and the contained angle of the one equal to two sides and the contained angle of the other ; namely , the side AC equal to BC , the angle ACD equal to BCD , and the side CD common ; therefore , these two triangles are identical ...
Página 11
... sides in the one , equal to all the three sides in the other , the triangles are identical , or have also their three angles equal , each to each . Let the two triangles ABC , DEF , have their three sides respectively equal , that is , the ...
... sides in the one , equal to all the three sides in the other , the triangles are identical , or have also their three angles equal , each to each . Let the two triangles ABC , DEF , have their three sides respectively equal , that is , the ...
Otras ediciones - Ver todas
Elements of Geometry: Containing the First Six Books of Euclid, with a ... John Playfair Vista de fragmentos - 1836 |
Términos y frases comunes
ABC is equal ABCD adjacent angles altitude angle ABC angle ACB angle BAC angles equal base BC bisected centre chord circle ABC circumference cosine cylinder demonstrated diameter divided draw Prob equal and similar equal angles equiangular equilateral equilateral polygon equimultiples Euclid exterior angle fore four right angles given straight line greater Hence hypotenuse inscribed join less Let ABC Let the straight magnitudes meet multiple opposite angle parallel parallelogram parallelopiped perpendicular polygon prism PROP proposition quadrilateral radius ratio rectangle contained rectilineal figure remaining angle right angled triangle SCHOLIUM segment semicircle shewn side BC sine solid angle solid parallelopiped spherical angle spherical triangle square straight line BC THEOR third touches the circle triangle ABC triangle DEF wherefore