ما يقوله الناس - كتابة مراجعة
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A B C D altitude asymptote axis base bisected centre chord circumference circumscribed co-ordinates coincide common section cone conic section contained convex surface curve cylinder deſ difference dihedral angle distance divided draw drawn ellipse equal angles equation generatrix given line given point given straight line gles greater hence hyperbola hypotenuse inscribed intersection join Latus Rectum less likewise locus magnitudes meet ordinate parabola parallel parallelogram parallelopiped pass perimeter perpendicular perspective projection plane prism produced projection PROP pyramid radii radius ratio rectangle rectilineal figure regular polygon right angles Scholium segment similar solid angles sphere spherical angle square straight line A B tangent third tion triangle A B C values vertex vertical
الصفحة 196 - 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.
الصفحة 20 - In every triangle, the square of the side subtending any of the acute angles, is less than the squares of the sides containing that angle, by twice the rectangle contained by either of these sides, and the straight line intercepted between the perpendicular let fall upon it from the opposite angle, and the acute angle. Let ABC be any triangle, and the angle at B one of its acute angles ; and upon BC, one of the sides containing it, let fall the perpendicular...
الصفحة 10 - If two triangles have two angles of the one equal to two angles of the other, each to each, and one side equal to one side, viz.
الصفحة 189 - ... shall be greater than the base of the other. Let ABC, DEF be two triangles, which have the two sides AB, AC, equal to the two DE, DF, each to each, viz.
الصفحة 1 - 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.
الصفحة 84 - The angle at the centre of a circle is double of the angle at the circumference, upon the same base, that is, upon the same part of the circumference.
الصفحة 78 - If a straight line touch a circle, and from the point of contact a straight line be drawn cutting the circle ; the angles which this line makes with the line touching the circle, shall be equal to the angles which are in the alternate segments of the circle.
الصفحة 79 - EQUAL straight lines in a circle are equally distant from the centre ; and those which are equally distant from the centre, are equal to one another.