Exercises Contained in Wentworth's Geometry: With Key, Followed by a Selection of Miscellaneous Exercises for PracticeGinn & Heath, 1879 - 182 Seiten |
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Seite 7
... equiangular pentagon is of a right angle . Since each angle of an equiangular polygon of 2 ( n - 2 ) n sides is equal to rt . ( 158 ) , each n 2 ( 5-2 ) = rt . 5 angle of an equiangular pentagon = rt . 4 . Ex . 3 . How many sides has an ...
... equiangular pentagon is of a right angle . Since each angle of an equiangular polygon of 2 ( n - 2 ) n sides is equal to rt . ( 158 ) , each n 2 ( 5-2 ) = rt . 5 angle of an equiangular pentagon = rt . 4 . Ex . 3 . How many sides has an ...
Seite 50
... polygon circum- scribed about a circle is regular if the number of its sides be odd . Let the sides of the ... equiangular polygon in- scribed in a circle is regular if the number of its sides be odd . Let ABCDE be an inscribed ...
... polygon circum- scribed about a circle is regular if the number of its sides be odd . Let the sides of the ... equiangular polygon in- scribed in a circle is regular if the number of its sides be odd . Let ABCDE be an inscribed ...
Seite 51
... polygon . Upon Oa as an axis revolve the quadrilateral OaAE until it comes into the plane of the quadrilateral OaBC ... equiangular polygon cir- cumscribed about a circle is regular . Let ABC , etc. , be an equiangular polygon cir ...
... polygon . Upon Oa as an axis revolve the quadrilateral OaAE until it comes into the plane of the quadrilateral OaBC ... equiangular polygon cir- cumscribed about a circle is regular . Let ABC , etc. , be an equiangular polygon cir ...
Seite 57
... regular in- scribed polygon , r the apothegm , a one side , A one angle , and C the angle at the centre ; show that ... equiangular . . ' . A is of 2 rt . 4 , or 60 ° . Since AD is a chord of LACD is measured by .. C 120 ° . = of the ...
... regular in- scribed polygon , r the apothegm , a one side , A one angle , and C the angle at the centre ; show that ... equiangular . . ' . A is of 2 rt . 4 , or 60 ° . Since AD is a chord of LACD is measured by .. C 120 ° . = of the ...
Seite 131
... equiangular , and .. a □ : hence AB is | to DE . Again , since AB is || to DE , LABE = LBED ; and since AF is | to ... polygon , be produced to meet at E : show that the figure AECO can be inscribed in a circle , O being the centre of the ...
... equiangular , and .. a □ : hence AB is | to DE . Again , since AB is || to DE , LABE = LBED ; and since AF is | to ... polygon , be produced to meet at E : show that the figure AECO can be inscribed in a circle , O being the centre of the ...
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Exercises Contained in Wentworth's Geometry: With Key, Followed by A ... George Albert Wentworth Keine Leseprobe verfügbar - 2008 |
Exercises Contained in Wentworth's Geometry: With Key, Followed by A ... George Albert Wentworth Keine Leseprobe verfügbar - 2008 |
Exercises Contained in Wentworth's Geometry: With Key, Followed by a ... George Albert Wentworth Keine Leseprobe verfügbar - 2016 |
Häufige Begriffe und Wortgruppen
ABCD AC² AD² altitude arc BC BC² BD² bisect bisectors CD² centre chord circum circumscribed circle cone Construct a circle cubic metres decagon diagonals diameter draw a line edge entire surface equally distant equiangular equiangular polygon equilateral triangle find the area Find the locus find the side find the volume frustum given circle given line given point given radius given square given straight line given triangle hypotenuse inches intersecting isosceles triangle Join Let ABC lines be drawn measured by arc meet middle point opposite sides parallel lines parallelogram pentagon perimeter perpendicular plane polygon produced pyramid quadrilateral radii rectangle regular polygon rhombus right angle right triangle segment similar slant height sphere spherical square metres tangent tetrahedron touch a given trapezoid vertex vertical angle
Beliebte Passagen
Seite 16 - To describe an isosceles triangle having each of the angles at the base double of the third angle.
Seite 8 - Every point in the bisector of an angle is equally distant from the sides of the angle...
Seite 79 - If two triangles have two sides of the one equal respectively to two sides of the other, but the third side of the first greater than the third side of the second, then the included angle of the first is greater than the included angle of the second. [Converse of Prop. XXX.] BC B' C
Seite 6 - ABC and ABD are two triangles on the same base AB, and on the same side of it, the vertex of each triangle being without the other. If AC equals AD, show that BC cannot equal BD (§ 154).
Seite 160 - Find the locus of a point which moves so that the difference of the squares of its distances from two fixed points is constant.
Seite 108 - The vertical angle of any oblique-angled triangle inscribed 'in a circle is greater or less than a right angle, by the angle contained by the base and the diameter drawn from the extremity of the base.
Seite 123 - If from one of the equal angles of an isosceles triangle a perpendicular be drawn to the opposite side, the rectangle contained by that side and the segment of it intercepted between the perpendicular and base, is equal to the half of the square described upon the base.
Seite 18 - ABC be formed by the intersection of three tangents to a circumference whose centre is 0, two of which, AM and AN, are fixed, while the third, BC, touches the circumference at a variable point P; show that the perimeter of the triangle ABC is constant, and equal to AM + AN, or 2 A M.
Seite 120 - If from the middle point of one of the sides of a right-angled triangle, a perpendicular be drawn to the hypotenuse, the difference of the squares on the segments into which it is divided, is equal to the square on the other side.
Seite 90 - Prop. 2- The sum of the diagonals of a quadrilateral is less than the sum of any four lines that can be drawn from any point whatever (except the intersection of the diagonals) to the four angles.