Plane Geometry: With Problems and ApplicationsAllyn and Bacon, 1910 - 280 páginas |
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Página 55
... isosceles trapezoid is one in which the two non - parallel sides are equal . In a trapezoid the two parallel sides are the upper and lower bases . 137. The altitude of a parallelogram or a trapezoid is the perpendicular distance between ...
... isosceles trapezoid is one in which the two non - parallel sides are equal . In a trapezoid the two parallel sides are the upper and lower bases . 137. The altitude of a parallelogram or a trapezoid is the perpendicular distance between ...
Página 64
... trapezoid are equal , then the non - parallel sides are equal and the trapezoid is isosceles . 4. In an isosceles trapezoid the angles adjacent to either base are equal . 5. Divide a segment AB into three equal parts . SUGGESTION ...
... trapezoid are equal , then the non - parallel sides are equal and the trapezoid is isosceles . 4. In an isosceles trapezoid the angles adjacent to either base are equal . 5. Divide a segment AB into three equal parts . SUGGESTION ...
Página 68
... isosceles trapezoid ? 2. If a diagonal of a rectangle is an axis of symmetry , what kind of a rectangle is it ? 3. If a triangle has an axis of symmetry , 68 PLANE GEOMETRY . Symmetry.
... isosceles trapezoid ? 2. If a diagonal of a rectangle is an axis of symmetry , what kind of a rectangle is it ? 3. If a triangle has an axis of symmetry , 68 PLANE GEOMETRY . Symmetry.
Página 71
... trapezoid a center of symmetry ? has an isosceles trapezoid ? 4. If two non - parallel straight lines are symmetric with respect to a line l , show that they meet this line in the same point and make equal angles with it . ( Any point ...
... trapezoid a center of symmetry ? has an isosceles trapezoid ? 4. If two non - parallel straight lines are symmetric with respect to a line l , show that they meet this line in the same point and make equal angles with it . ( Any point ...
Página 80
... isosceles right triangle ABC with the altitude CO upon the hypotenuse . ( a ) Show how to draw xy l || AC such that ... trapezoid . ( c ) Draw yz || OB and prove yz = yx . Prove AxyC isosceles . SUGGESTION . Prove & Cyz isosceles ...
... isosceles right triangle ABC with the altitude CO upon the hypotenuse . ( a ) Show how to draw xy l || AC such that ... trapezoid . ( c ) Draw yz || OB and prove yz = yx . Prove AxyC isosceles . SUGGESTION . Prove & Cyz isosceles ...
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Términos y frases comunes
ABCD acute angle adjacent angles altitude angle formed angles are equal apothem axes of symmetry axioms base bisects called central angle chord circle tangent circumscribed coincide congruent corresponding sides Definition diagonal diameter distance divided dodecagon Draw drawn equal angles equal circles equiangular equilateral triangle EXERCISES exterior angle figure Find the area Find the locus Find the radius fixed point geometric Give the proof given point given segment given triangle Hence hypotenuse hypothesis inches inscribed intersection isosceles trapezoid isosceles triangle l₁ length line-segment measure meet middle points number of sides Outline of Proof parallel lines parallelogram perigon perimeter plane proof in full quadrilateral radii ratio rectangle regular hexagon regular octagon regular polygon rhombus right angles right triangle secant semicircle Show shown square straight angle straight line subtend SUGGESTION THEOREM trapezoid triangle ABC vertex vertices width
Pasajes populares
Página 223 - If two triangles have two sides of the one equal to two sides of the other...
Página 41 - An exterior angle of a triangle is equal to the sum of the two opposite interior angles.
Página 121 - Sines that the bisector of an angle of a triangle divides the opposite side into parts proportional to the adjacent sides.
Página 60 - The straight line joining the middle points of two sides of a triangle is parallel to the third side and equal to half of it 46 INTERCEPTS BY PARALLEL LINES.
Página 182 - The areas of two regular polygons of the same number of sides are to each other as the squares of their radii, or as the squares of their apothems.
Página 161 - The formula states that the square of the hypotenuse of a right triangle is equal to the sum of the squares of the base and altitude.
Página 227 - Find the locus of a point such that the difference of the squares of its distances from two fixed points is a constant.
Página 210 - The area of a rectangle is equal to the product of its base and altitude.
Página 31 - Kuclid divided unproved propositions into two classes: axioms, or "common notions," which are true of all things, such as, " If things are equal to the same thing they are equal to each other"; and postulates, which apply only to geometry, such as,