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ABCD adjacent altitude base bisect bisector called centre chord circle circumference circumscribed coincide common cone Cons construct contains cylinder describe diagonals diameter diedral angle difference distance divided draw drawn edges equal equally distant equilateral equivalent EXERCISES faces fall feet figure Find formed four frustum given given point given straight line greater half height homologous inches included inscribed intersection isosceles Join lateral area length less limit mean measured meet middle point parallel parallelogram parallelopiped pass perimeter perpendicular plane polygon prism Problem produced Proof proportional Proposition prove pyramid quantities radii radius ratio rectangle regular polygon respectively right angles segment sides similar sphere square straight line surface tangent Theorem third triangle vertex vertices volume
Seite 74 - A circle is a plane figure bounded by a curved line, called the circumference, every point of which is equally distant from a point within called the center.
Seite 45 - If two triangles have two sides of the one equal respectively to two sides of the other, but the included angle of the first greater than the included angle of the second, then the third side of the first is greater than the third side of the second. Hyp. In A ABC and A'B'C' AB = A'B'; AC = A'C'; ZA>ZA'.
Seite 137 - Terms of the proportion. The first and fourth terms are called the Extremes, and the second and third the Means.
Seite 12 - AXIOMS. 1. Things which are equal to the same thing are equal to each other. 2. If equals be added to equals, the sums will be equal.
Seite 206 - To divide a given straight line into two parts, so that the rectangle contained by the whole and one of the parts, shall be equal to the square on the other part.
Seite 97 - BAC, inscribed in a segment greater than a semicircle, is an acute angle ; for it is measured by half of the arc BOC, less than a semicircumference.
Seite 334 - A sphere is a solid bounded by a curved surface, every point of which is equally distant from a point within called the center.
Seite 12 - LET it be granted that a straight line may be drawn from any one point to any other point.