Plane and Solid GeometryCentury Company, 1906 - 418 σελίδες |
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Αποτελέσματα 1 - 5 από τα 81.
Σελίδα 7
... vertex of an angle is the point in which the sides B meet . Thus , the lines AB and AC meeting at A form the angle BAC . AB and AC are the sides of the angle , and the point A is its vertex . C 64 When there is but one angle at a point ...
... vertex of an angle is the point in which the sides B meet . Thus , the lines AB and AC meeting at A form the angle BAC . AB and AC are the sides of the angle , and the point A is its vertex . C 64 When there is but one angle at a point ...
Σελίδα 8
... vertex between the other two . at the vertex A are three angles , BAC , CAD , BAD . For simplicity an angle may be designated by a small italic letter placed between its sides and near its vertex ; as , angles m and n . A 66 Adjacent ...
... vertex between the other two . at the vertex A are three angles , BAC , CAD , BAD . For simplicity an angle may be designated by a small italic letter placed between its sides and near its vertex ; as , angles m and n . A 66 Adjacent ...
Σελίδα 15
... vertex B falls on the vertex B ' , and the line BA along the line B'A ' . Then BC will fall along B'C ' . .. the ABC and A'B'C ' coincide and are equal . 101 COROLLARY 1 . All right angles are equal . PROOF Post . 3 $ 94 $ 89 Q. E. D. ...
... vertex B falls on the vertex B ' , and the line BA along the line B'A ' . Then BC will fall along B'C ' . .. the ABC and A'B'C ' coincide and are equal . 101 COROLLARY 1 . All right angles are equal . PROOF Post . 3 $ 94 $ 89 Q. E. D. ...
Σελίδα 17
... . Za Z ... MN is a st . line . $ 109 " A straight angle is an angle whose sides extend in opposite directions from the vertex , forming one straight line . " § 69 111 DEFINITION . Vertical angles are the two angles on STRAIGHT LINES 17.
... . Za Z ... MN is a st . line . $ 109 " A straight angle is an angle whose sides extend in opposite directions from the vertex , forming one straight line . " § 69 111 DEFINITION . Vertical angles are the two angles on STRAIGHT LINES 17.
Σελίδα 28
... vertices . The angles are supplementary when one pair of correspond- ing sides extends in the same direction , and the other pair in opposite directions , from the vertices . EXERCISES 24 If AB and CD are parallel and 0 28 PLANE ...
... vertices . The angles are supplementary when one pair of correspond- ing sides extends in the same direction , and the other pair in opposite directions , from the vertices . EXERCISES 24 If AB and CD are parallel and 0 28 PLANE ...
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Άλλες εκδόσεις - Προβολή όλων
Συχνά εμφανιζόμενοι όροι και φράσεις
ABCD altitude angles are equal arc BC assigned quantity base bisectors bisects chord circumference circumscribed Compute CONCLUSION cone construct COROLLARY cylinder diagonals diameter diedral angles divided equiangular equiangular polygon equidistant equilateral triangle exterior angle Find the area Find the locus frustum given circle given line given point homologous hypotenuse HYPOTHESIS inches inscribed intersect isosceles trapezoid isosceles triangle lateral area legs lune median mid-points number of sides opposite parallel lines parallelogram parallelopiped perimeter perpendicular polyedral angle polyedron prism PROOF Draw PROOF Let Prove pyramid Q. E. D. EXERCISES Q. E. D. PROPOSITION quadrilateral radii radius ratio rectangle regular polygon rhombus right angles right triangle SCHOLIUM secant segment semicircle spherical angle spherical degrees spherical excess spherical polygon spherical triangle straight line surface symmetrical tangent tetraedron THEOREM trapezoid triangle ABC triedral vertex vertical angle
Δημοφιλή αποσπάσματα
Σελίδα 168 - In any triangle, the square of the side opposite an acute angle is equal to the sum of the squares of the other two sides diminished by twice the product of one of those sides and the projection of the other upon that side.
Σελίδα 41 - In an isosceles triangle the angles opposite the equal sides are equal.
Σελίδα 38 - ... greater than the included angle of the second, then the third side of the first is greater than the third side of the second.
Σελίδα 35 - Any side of a triangle is less than the sum of the other two sides...
Σελίδα 174 - In any triangle, the product of two sides is equal to the product of the segments of the third side formed by the bisector of the opposite angle plus the square of the bisector.
Σελίδα 172 - If from a point without a circle a tangent and a secant are drawn, the tangent is the mean proportional between the whole secant and its external segment.
Σελίδα 171 - If two chords intersect within a circle, the product of the segments of one is equal to the product of the segments of the other.
Σελίδα 199 - Two triangles having an angle of the one equal to an angle of the other are to each other as the products of the sides including the equal angles.
Σελίδα 192 - The areas of two rectangles having equal altitudes are to each other as their bases.
Σελίδα 65 - The perpendicular bisectors of the sides of a triangle meet in a point. 12. The bisectors of the angles of a triangle meet in a point. 13. The tangents to a circle from an external point are equal. 14...