Practical Plane Geometry, Volume 30William Collins, Sons and Company, 1876 - 148 pages |
Other editions - View all
Common terms and phrases
A B and C D A B as radius A B C A B equal A B,-from altitude arc to cut axis B,-bisect Bisect A B C,-from centre circle in points construct a triangle construct an angle construct an irregular cut A B cut the arc cut the circle cut the line describe a circle describe an arc describe arcs cutting describe the circle directrix Divide A B draw a line draw lines parl ellipse eqtrl equal to angle erect a perpr F,-draw figure find the curve G,-join generatrix given angle given circle given line given point given ratio given triangle heptagon inscribe isosceles triangle join line A B mark point Note number of equal parabola pgram plane points F radii radius A B radius CD regular polygon rhombus sides of A B tangent touch a given trapezium
Popular passages
Page 2 - ... the three angles of a triangle are together equal to two right angles, although it is not known to all.
Page 4 - From a given point, outside a given straight line, draw a line making with the given line an angle equal to a given angle.
Page 4 - To draw a line perpendicular to a given line from a given point in it.
Page 4 - To bisect a given arc. 116. To bisect a given angle. 117. At a given point in a given line to construct an angle equal to a given angle. 118. Through a given point to draw a parallel to a given line. 119. From a point without a given line to draw a line making a given angle with this line.
Page 4 - To Draw a Line Parallel to a Given Line through a Given Point.
Page 8 - Construct a triangle equal in area to a given triangle, and having a given altitude.
Page 2 - ... by his own and other students, why he did not write a book which would be on the same level as the more advanced lecturing and teaching of the present time.
Page 4 - To Draw a Line Perpendicular to a Given Line from a Point on the Line, or Outside the Line.
Page 2 - Any two sides of a triangle must be together greater than the third side.
Page 7 - To describe a circle through a given point, to touch two given circles.