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Elements of Geometry: With, Practical Applications
George Roberts Perkins
Visualització completa - 1850
Elements of geometry: with practical application designed for beginners
George Roberts Perkins
Visualització completa - 1853
altitude angle ACB angle BAC bisect centre chord circ circular sector circumference cone consequently convex surface cylinder denote diagonal diameter distance draw equiangular equilateral triangle equivalent exterior angle figure formed four right angles given line greater half the arc hypothenuse inscribed circle intersection isosceles join less Let ABC line CD lines drawn magnitude measured by half meet multiplied number of sides opposite angles parallel planes parallelogram parallelopipedon pendicular perimeter perpendicular plane MN point G prism PROBLEM produced Prop proportional PROPOSITION pyramid radii radius rectangle regular polygon respectively equal right angles right-angled triangle SABC Schol Scholium semicircle semicircumference side AC similar similar triangles solid angle solid described sphere spherical triangle square straight line suppose tangent THEOREM three sides triangle ABC triangular prism vertex VIII
Pàgina 37 - The sum of all the angles of a polygon is equal to twice as many right angles as the polygon has sides, less two.
Pàgina 139 - PROBLEM. To inscribe a circle in a given triangle. Let ABC be the given triangle : it is required to inscribe a circle in the triangle ABC.
Pàgina 224 - The radius of a sphere is a straight line, drawn from the centre to any point of the...
Pàgina 43 - In a right-angled triangle, the side opposite the right angle is" called the Hypothenuse ; and the other two sides are cal4ed the Legs, and sometimes the Base and Perpendicular.
Pàgina 184 - THEOREM. If two angles, not situated in the same plane, have their sides parallel and lying in the same direction, they will be equal, and the planes in which they are situated will be parallel.
Pàgina 10 - A circle is a plane figure contained by one line, which is called the circumference, and is such, that all straight lines drawn from a certain point within the figure to the circumference are equal to one another.
Pàgina 226 - We conclude then, that the solidity of a cylinder is equal to the product of its base by its altitude.
Pàgina 22 - If two sides and the included angle of the one are respectively equal to two sides and the included angle of the other...