Plane Geometry: And Supplements |
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Page 90
... extended . ( c ) Find two lines that are not coplanar . Can they ever intersect ? 83. ( a ) Parallel lines are coplanar C D lines that do not intersect no mat- ter how far they are extended , as AB and CD . The symbol for is parallel to ...
... extended . ( c ) Find two lines that are not coplanar . Can they ever intersect ? 83. ( a ) Parallel lines are coplanar C D lines that do not intersect no mat- ter how far they are extended , as AB and CD . The symbol for is parallel to ...
Page 401
... extended at X , and AC extended at Y. Prove ABC similar to ∆AXY . Suggestion . Prove ∠Y = ZABC . ☆ 174 . If E is the mid - point of one of the parallel sides BC of trapezoid ABCD , and AE and DE extended meet DC and AB extended at F ...
... extended at X , and AC extended at Y. Prove ABC similar to ∆AXY . Suggestion . Prove ∠Y = ZABC . ☆ 174 . If E is the mid - point of one of the parallel sides BC of trapezoid ABCD , and AE and DE extended meet DC and AB extended at F ...
Page 402
... Extend CA through A to E so that AE = CA. Draw BE and prove ∠CBE is a right angle . 186. Let ABCD be any rectangle . Draw BE 1 AC , meeting CD extended at F , and FG | BA extended at G. Prove BC is the mean proportional between AB and ...
... Extend CA through A to E so that AE = CA. Draw BE and prove ∠CBE is a right angle . 186. Let ABCD be any rectangle . Draw BE 1 AC , meeting CD extended at F , and FG | BA extended at G. Prove BC is the mean proportional between AB and ...
Contents
g The optional units from analytic geometry are included for three | 1 |
LinesAnglesPlanes | 11 |
W W | 24 |
Copyright | |
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Common terms and phrases
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