Plane Geometry: And Supplements |
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Page 204
... ratio of 2 to 3 is 23 , or . Generally write ratios in fractional form . ( b ) The ratio of a to b often is written ab . Therefore , 2 : 5 means . This method is convenient in a printed book ... ratios are 204 RATIO AND PROPORTION.
... ratio of 2 to 3 is 23 , or . Generally write ratios in fractional form . ( b ) The ratio of a to b often is written ab . Therefore , 2 : 5 means . This method is convenient in a printed book ... ratios are 204 RATIO AND PROPORTION.
Page 211
... ratio = AD AE 4 That is , one side of the triangle is to its upper segment as the other side is to its upper segment . DB EC ( c ) = because , in the figure , each ratio = AD AE ៖ 3 4 DB EC 3 ( d ) = because each ratio = AB AC 7 AD ...
... ratio = AD AE 4 That is , one side of the triangle is to its upper segment as the other side is to its upper segment . DB EC ( c ) = because , in the figure , each ratio = AD AE ៖ 3 4 DB EC 3 ( d ) = because each ratio = AB AC 7 AD ...
Page 220
... ratios equal , it is necessary often to prove each of them equal to some third ratio . This theorem proves that the ratio of two corresponding altitudes of similar triangles equals the ratio of similitude of the triangles ( §244 ( c ) ...
... ratios equal , it is necessary often to prove each of them equal to some third ratio . This theorem proves that the ratio of two corresponding altitudes of similar triangles equals the ratio of similitude of the triangles ( §244 ( c ) ...
Contents
g The optional units from analytic geometry are included for three | 1 |
LinesAnglesPlanes | 11 |
W W | 24 |
Copyright | |
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ABCD acute angle adjoining figure altitude angle formed angles are equal apothem bisector bisects central angle chord conclusion congruent Construct converse coplanar corresponding sides diagonals diameter dihedral Draw drawn equal circles equidistant equilateral triangle exercises extended exterior angle figure for Ex Find frustum geometry given hypotenuse Hypothesis Informal proof inscribed intersect isosceles trapezoid isosceles triangle kind of angle lateral area length locus of points mean proportional measure meeting mid-point opposite sides parallel parallelogram perimeter perpendicular perpendicular-bisector Plan plane plane geometry Post postulate prism Prove pyramid quadrilateral radii radius ratio rectangle regular polygon rhombus right angle right circular right triangle secant segment similar sphere square Statements straight line Suggestion tangent theorem trapezoid trihedral angle vertex vertical angles Нур