The elements of plane geometry, Τόμος 1 |
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Αποτελέσματα 1 - 5 από τα 23.
Σελίδα 15
... fall on that other part . DEF . 6. A plane surface , or plane , is a surface in which any two points being taken the straight line that joins them lies wholly in that surface . 1 GEOMETRICAL AXIOMS . 1. Magnitudes that can be made to ...
... fall on that other part . DEF . 6. A plane surface , or plane , is a surface in which any two points being taken the straight line that joins them lies wholly in that surface . 1 GEOMETRICAL AXIOMS . 1. Magnitudes that can be made to ...
Σελίδα 16
... fall on any other straight line with any given point on the one on any given point on the other ; B. Two straight lines which meet in one point cannot meet again unless they coincide . SECTION I. ANGLES AT A POINT . [ An angle is a ...
... fall on any other straight line with any given point on the one on any given point on the other ; B. Two straight lines which meet in one point cannot meet again unless they coincide . SECTION I. ANGLES AT A POINT . [ An angle is a ...
Σελίδα 18
... be equal to the angle EFG . H Apply the straight line CBD to the straight line GFH , so that the point B may fall on the point F , Ax . 2a . and the straight line BA on the same side of 18 THE ELEMENTS OF PLANE GEOMETRY .
... be equal to the angle EFG . H Apply the straight line CBD to the straight line GFH , so that the point B may fall on the point F , Ax . 2a . and the straight line BA on the same side of 18 THE ELEMENTS OF PLANE GEOMETRY .
Σελίδα 19
... fall on the line FE . For if it falls otherwise it must fall either within the angle EFH or the angle EFG . Let it fall within the angle EFH , as FK . Then , because the angle KFG is a right angle , therefore it is equal to the angle ...
... fall on the line FE . For if it falls otherwise it must fall either within the angle EFH or the angle EFG . Let it fall within the angle EFH , as FK . Then , because the angle KFG is a right angle , therefore it is equal to the angle ...
Σελίδα 25
... fall on the point D , the side AB along the side DE , and the point C on the same side of DE as the point F ; then B will fall on E , since AB is equal to DE , Hyp . AC will fall along DF , since the angle BAC TRIANGLES . 25.
... fall on the point D , the side AB along the side DE , and the point C on the same side of DE as the point F ; then B will fall on E , since AB is equal to DE , Hyp . AC will fall along DF , since the angle BAC TRIANGLES . 25.
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Συχνά εμφανιζόμενοι όροι και φράσεις
AB is equal ABCD AC is equal adjacent angles adjoining sides alternate angle angle ABC angle ACB angle AFG angle BAC angle CAB angle DEF angle EDF angle FGD angles are equal angles equal BA and AC base BC bisector bisects centre circle cutting Constr construct a triangle contrapositive diagonal distance draw a circle equal angles equal to AC equal to CD exterior angle find the locus Geometry given angle given point given straight line greater Hence hypotenuse identically equal interior opposite angle isosceles triangle less Let ABC meet middle point obtuse angle opposite sides parallel straight lines parallelogram perpendicular point equidistant Prob produced quadrilateral rectangle contained rectangle whose base right angles right-angled triangle shew side AB side AC sides equal square on AC squares on AB straight line drawn Theorem trapezium triangle ABC triangles are identically twice the rectangle vertex
Δημοφιλή αποσπάσματα
Σελίδα 27 - 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. either the sides adjacent to the equal...
Σελίδα 98 - 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.
Σελίδα 56 - ... is equal to twice as many right angles as the polygon
Σελίδα 35 - Any two sides of a triangle are together greater than the third side.
Σελίδα 26 - The straight lines drawn from the extremities of the base of an isosceles triangle to the middle points of the opposite sides are equal to one another.
Σελίδα 37 - Of all the straight lines that can be drawn to a given straight line from a given point outside it, the perpendicular is the shortest.
Σελίδα 70 - A diameter of a circle is a straight line drawn through the centre, and terminated both ways by the circumference.
Σελίδα 110 - Iff a straight line be divided into any two parts, four times the rectangle contained by the whole line, and one of the parts, together with the square of the other part, is equal to the square of the straight line which is made up of the whole and that part.
Σελίδα 31 - Any two angles of a triangle are together less than two right angles.
Σελίδα 115 - In a right.angled triangle, the square on the hypotenuse is equal to the sum of the squares on the sides containing the right angle . . . . 130 Applications of Pythagoras' theorem . . . . 132 THEOREM 6.