A School Geometry, Μέρη 1-4Macmillan and Company, 1908 |
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Αποτελέσματα 1 - 5 από τα 32.
Σελίδα 2
... represents a line . But such a trace , however finely drawn , has some degree of breadth , and is therefore not itself a true geometrical line . The finer the trace left by the moving pencil - point , the more nearly will it represent a ...
... represents a line . But such a trace , however finely drawn , has some degree of breadth , and is therefore not itself a true geometrical line . The finer the trace left by the moving pencil - point , the more nearly will it represent a ...
Σελίδα 23
... represent the triangle when reversed . In Theorem 5 , it will be found on applying A to A ' that C may be made to fall on B ' , and B on C ' . In Theorem 6 , on applying C to B ' and B to C ' we find that A will fall on A ' . In either ...
... represent the triangle when reversed . In Theorem 5 , it will be found on applying A to A ' that C may be made to fall on B ' , and B on C ' . In Theorem 6 , on applying C to B ' and B to C ' we find that A will fall on A ' . In either ...
Σελίδα 27
... represents 10 ft .; and find by measurement the length of the ladder . Plot my 6. I go due North 99 metres , then due ... Represent this on a diagram ( scale 1 " to 10 ft . ) ; and find by measurement the approximate height of the pole ...
... represents 10 ft .; and find by measurement the length of the ladder . Plot my 6. I go due North 99 metres , then due ... Represent this on a diagram ( scale 1 " to 10 ft . ) ; and find by measurement the approximate height of the pole ...
Σελίδα 51
... represents the ABC in its new position . Since each of the DEF , DEC ' is a right angle , .. EF and EC ' are in one straight line . And in the AC'DF , because DF = DC ' ( i.e. AC ) , ( the .. the DFC ' the DC'F . = Hence in the A ' DEF ...
... represents the ABC in its new position . Since each of the DEF , DEC ' is a right angle , .. EF and EC ' are in one straight line . And in the AC'DF , because DF = DC ' ( i.e. AC ) , ( the .. the DFC ' the DC'F . = Hence in the A ' DEF ...
Σελίδα 52
... represent AC , CB in their new position . Then if EG passes through F , EG is greater than EF ; that is , BC is greater than EF . But if EG does not pass through F , suppose that DK bisects the FDG , and meets EG in K. Join FK . because ...
... represent AC , CB in their new position . Then if EG passes through F , EG is greater than EF ; that is , BC is greater than EF . But if EG does not pass through F , suppose that DK bisects the FDG , and meets EG in K. Join FK . because ...
Άλλες εκδόσεις - Προβολή όλων
Συχνά εμφανιζόμενοι όροι και φράσεις
AB² adjacent angles altitude angle equal base BC bisector bisects circle of radius circle whose centre circles which touch circum-circle circumference circumscribed coincide common tangents concyclic Construct a triangle diagonals diagram diameter distance divided draw a circle equal in area equidistant escribed circles Euclid exterior angles Find the area find the locus given angle given circle given point given straight line given triangle greater Hence hypotenuse inches inscribed isosceles triangle length Let ABC meet metres middle point millimetre nine-points circle opposite sides orthocentre par¹ parallelogram pedal triangle perp PROBLEM produced Proof radii rect rectangle rectangle contained rectilineal figure required to prove respectively rhombus right angles right-angled triangle segment shew shewn straight line drawn tangent Theor Theorem trapezium triangle ABC triangles are equal vertex vertical angle
Δημοφιλή αποσπάσματα
Σελίδα xi - IF two triangles have two angles of one equal to two angles of the other, each to each ; and one side equal to one side, viz. either the sides adjacent to the equal...
Σελίδα 44 - All the interior angles of any rectilineal figure, together with four right angles, are equal to twice as many right angles as the figure has sides.
Σελίδα 190 - Upon a given straight line to describe a segment of a circle, which shall contain an angle equal to a given rectilineal angle.
Σελίδα 12 - If, at a point in a straight line, two other straight lines, upon the opposite sides of it, make the adjacent angles together equal to two right angles, these two straight lines shall be in one and the same straight line.
Σελίδα 5 - A diameter of a circle is a straight line drawn through the centre, and terminated both ways by the circumference.
Σελίδα 122 - The square described on the hypothenuse of a rightangled triangle is equal to the sum of the squares described on the other two sides.
Σελίδα 28 - If one side of a triangle be produced, the exterior angle is greater than either of the interior opposite angles.
Σελίδα x - 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.
Σελίδα 65 - The sum of the perpendiculars from any point within an equilateral triangle to the three sides is equal to the altitude of the triangle (Fig.