Τι λένε οι χρήστες - Σύνταξη κριτικής
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ABCD acute altitude angle approaches base bisector bisects called centre chord circle circumference circumscribed coincide common cone construct cylinder denote describe diagonals diameter difference dihedral angles distance divided Draw drawn edges equal equidistant equilateral equivalent external faces fall feet figure Find formed frustum given circle given line given point greater half height Hence homologous hypotenuse inches included increased inscribed intersecting joining lateral legs length less limit measured meet middle point number of sides opposite parallel parallelogram pass perimeter perpendicular plane polygon prism PROBLEM Proof proportional PROPOSITION prove pyramid quantities radii radius ratio rectangle regular polygon respectively right angle right triangle segments sides similar sphere square straight line Suppose surface tangent THEOREM third touch trapezoid triangle vertex vertices volume
Σελίδα 94 - Any two sides of a triangle are together greater than the third side.
Σελίδα 50 - If the opposite sides of a quadrilateral are equal, the figure is a parallelogram.
Σελίδα 42 - 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.
Σελίδα 360 - A sphere is a solid bounded by a surface all points of which are equally distant from a point within called the centre.
Σελίδα 89 - The tangents to a circle drawn from an external point are equal, and make equal angles with the line joining the point to the centre.
Σελίδα 156 - In a series of equal ratios, the sum of the antecedents is to the sum of the consequents as any antecedent is to its consequent.
Σελίδα 41 - If two angles of a triangle are unequal, the sides opposite are unequal, and the greater side is opposite the greater angle.
Σελίδα 191 - 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.