# Plane and Solid Geometry: To which is Added Plane and Spherical Trigonometry and Mensuration : Accompanied with All the Necessary Logarithmic and Trigonometric Tables

D. Appleton, 1860 - 443 σεκΏδερ

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### Ργλοωικό αποσπήσλατα

”εκΏδα 111 - CUBIC MEASURE 1728 cubic inches = 1 cubic foot 27 cubic feet = 1 cubic yard...
”εκΏδα 31 - If the opposite sides of a quadrilateral are equal, the figure is a parallelogram.
”εκΏδα 110 - ALSO THE AREA OF THE TRIANGLE FORMED BY THE CHORD OF THE SEGMENT AND THE RADII OF THE SECTOR. THEN...
”εκΏδα 33 - If two triangles have the three sides of the one equal to the three sides of the other, each to each, the triangles are congruent.
”εκΏδα 78 - The areas of two triangles which have 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. A D A' Hyp. In triangles ABC and A'B'C', To prove AABC A A'B'C' A'B' x A'C ' Proof. Draw the altitudes BD and B'D'.
”εκΏδα 137 - If a straight line is perpendicular to each of two straight lines at their point of intersection, it is perpendicular to the plane of those lines.
”εκΏδα 15 - The sum of all the angles of a polygon is equal to twice as many right angles as the polygon has sides, less two.
”εκΏδα 172 - The radius of a sphere is a straight line, drawn from the centre to any point of the...
”εκΏδα 105 - ... similar figures are to each other as the squares of their homologous sides.
”εκΏδα 178 - Every section of a sphere, made by a plane, is a circle.