Mensuration of lines, surfaces, and volumes1873 |
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12 feet 20 feet 9 inches AB² ABCD altitude angle ABC angle AOB angle subtended arc equal area of ABC area of triangle axis base multiplied centre circle whose radius circular measure circular segment circumference circumscribing circle cube cylinder decagon diagonal divide edge equilateral triangle Euclid feet 6 inches feet 9 find the area find the length Find the number Find the radius find the side find the surface Find the volume foot 9 frustum generatrix half the sum Hence hypothenuse Interpreting this formula lateral surface lune magnitude number of sides parallel parallelogram plane prism PROP radii ratio rectangle rectangular parallelopiped regular hexagon regular polygon revolving round right angle right-angled triangle sector segment shew similar triangle slant height square feet square inches square yards total surface trapezoid triangle ABC triangular prism triangular pyramid unit angle vertex
Populāri fragmenti
1. lappuse - The area of the surface generated by a straight line revolving about an axis in its plane, is equal to the projection of the line on the axis multiplied by the circumference of the circle whose radius is the perpendicular erected at the middle of the line and terminated by the axis.
59. lappuse - The volume of a triangular prism is equal to the product of its base by its altitude.
40. lappuse - A Cylindrical surface is a curved surface generated by a moving straight line which continually touches a given curve and in all its positions is parallel to a given fixed straight line not in the plane of the curve.
42. lappuse - A conical surface is a curved surface generated by a moving straight line which continually touches a given curve, and passes through a given fixed point not in the plane of the curve. Thus, if the straight line...
46. lappuse - A sphere is a solid bounded by a surface all points of which are equally distant from a point within called the centre.
97. lappuse - From this it readily follows that all the three lines drawn from the angles of a triangle to the middle of the opposite sides, pass through one and the same point.
46. lappuse - The axis of a circle of a sphere is the diameter of the sphere which is perpendicular to the plane of the circle. The ends of the axis are called the poles of the circle.
98. lappuse - The area of a regular inscribed hexagon is a mean proportional between the areas of the inscribed and circumscribed equilateral triangles.
40. lappuse - The areas of two circles are to each other as the squares of their radii, or as the squares of their diameters. S TrR2 R* If1' = ~R^ = "cT* = -D'*