Elementary Geometry: Plane |
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Συχνά εμφανιζόμενοι όροι και φράσεις
ABCD according adjacent alternate altitude angle equal antecedents apply base bisects called chord circumscribed coincide common Compare compounded consequents construct contained converse corresponding Definition describe diagonal difference divided double Draw drawn equal equilateral equivalent extremities figure four geometry given angle given circle given line given point greater half Hence hypothesis inscribed interior angles intersect isosceles less limit line joining locus magnitudes mean measure meet multiple Note number of sides opposite sides Outline pair parallel parallelogram passes perimeter perpendicular placed plane polygon portion position PROBLEM prolonged proof proportional prove quadrangle radii radius ratio rectangle regard regular polygons relation remaining right angle scale segments Show sides similar similarly solution square statement straight angle straight line successive surface symmetric Take taken tangent THEOREM third triangle triangle ABC true unequal vertex whole
Δημοφιλή αποσπάσματα
Σελίδα 150 - In every triangle, the square on the side subtending an acute angle is less than the sum of the squares on 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 on it from the opposite angle, and the acute angle.
Σελίδα 149 - In an obtuse-angled triangle the square on the side opposite the obtuse angle is greater than the sum of the squares on the other two sides by twice the rectangle contained by either side and the projection on it of the other side.
Σελίδα 7 - LET it be granted that a straight line may be drawn from any one point to any other point.
Σελίδα 40 - When two triangles have two sides of the one respectively equal to two sides of the other, and the included angles unequal, the third side in that triangle which has the greater angle, is greater than in the other.
Σελίδα 138 - If a straight line be divided into any two parts, the square on the whole line is...
Σελίδα 197 - UPON a given straight line to describe a segment of a circle containing an angle equal to a given rectilineal angle.
Σελίδα 82 - The straight line joining the middle points of two sides of a triangle is parallel to the third side and equal to half of it 46 INTERCEPTS BY PARALLEL LINES.
Σελίδα 265 - If four magnitudes of the same kind be proportionals, they shall also be proportionals when taken alternately. Let A, B, C, D be four magnitudes of the same kind, which are proportionals, viz.
Σελίδα 309 - 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. D c A' D' Hyp. In triangles ABC and A'B'C', ZA = ZA'. To prove AABC = ABxAC. A A'B'C' A'B'xA'C' Proof. Draw the altitudes BD and B'D'.
Σελίδα 289 - ... they have an angle of one equal to an angle of the other and the including sides are proportional; (c) their sides are respectively proportional.
Πληροφορίες βιβλιογραφίας
| Τίτλος | Elementary Geometry: Plane Modern mathematical series |
| Συγγραφέας | James McMahon |
| Εκδότης | American Book Company, 1903 |
| Μέγεθος | 358 σελίδες |
| Εξαγωγή αναφοράς | BiBTeX EndNote RefMan |