Plane Geometry

Charles E. Merrill Company, 1904 - 372 σελίδες

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Δημοφιλή αποσπάσματα

Σελίδα 82 - Prove analytically that the medians of a triangle meet in a point. 70. Prove analytically that the perpendiculars from the vertices of a triangle to the opposite sides meet in a point.
Σελίδα 78 - The line joining the midpoints of two sides of a triangle is parallel to the third side and equal to one-half of it.
Σελίδα 88 - The median to the base of an isosceles triangle is perpendicular to the base.
Σελίδα 239 - If two triangles have an angle of one equal to an angle of the other, and...
Σελίδα 47 - If two triangles have two sides of one equal respectively to two sides of the other...
Σελίδα 255 - If two triangles have two sides of one equal to two sides of the other but the third side of the first greater than the thin!
Σελίδα 269 - The circumference of a circle is greater than the perimeter of any inscribed polygon.
Σελίδα 100 - If the diagonals of a quadrilateral bisect each other at right angles, the figure is a rhombus.
Σελίδα 115 - In the same circle or in equal circles, if two chords are unequally distant from the center, they are unequal, and the chord at the less distance is the greater.
Σελίδα 74 - Quadrilateral ; of five sides a Pentagon ; of six sides a Hexagon ; of seven sides a Heptagon ; of eight sides an Octagon ; of nine sides a Nonagon ; of ten sides a Decagon ; of twelve sides a Dodecagon.

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