Euclid, Βιβλίο 1W.B. Clive, 1903 - 164 σελίδες |
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Αποτελέσματα 1 - 5 από τα 17.
Σελίδα ix
... inches and tenths of an inch on one edge , and a scale of millimetres on the other edge . Numerical answers are ... inches ; also the abbreviations cm . and mm . for centimetres and millimetres . Problem I. — To construct a triangle ...
... inches and tenths of an inch on one edge , and a scale of millimetres on the other edge . Numerical answers are ... inches ; also the abbreviations cm . and mm . for centimetres and millimetres . Problem I. — To construct a triangle ...
Σελίδα x
... inches ; and another whose sides measure 20 , 30 , 60 mm . 2. On angles . - Any triangle has three corners . These corners are called angles . If the student examines the triangles which he has just drawn and the triangles on page 6 of ...
... inches ; and another whose sides measure 20 , 30 , 60 mm . 2. On angles . - Any triangle has three corners . These corners are called angles . If the student examines the triangles which he has just drawn and the triangles on page 6 of ...
Σελίδα xvii
... inches , having angles of 40 ° and 55 ° respectively at the extremities of the base . Draw BC of length 2 inches ( Fig . 17 ) . Using the protractor , make an angle of 40 ° at B ( viz . CBH ) , and an angle at 55 ° at C ( viz . BCK ) ...
... inches , having angles of 40 ° and 55 ° respectively at the extremities of the base . Draw BC of length 2 inches ( Fig . 17 ) . Using the protractor , make an angle of 40 ° at B ( viz . CBH ) , and an angle at 55 ° at C ( viz . BCK ) ...
Σελίδα xviii
... inches , and an angle of 25 ° opposite to the shorter side . Construct HBK = 25 ° ( Fig . 18 ) . From BH mark off BA = A H 24 " 14 " 25 14 " C Fig 18 . D. K 2.4 inches . With centre A and radius 1.4 inches describe an arc cutting BK in ...
... inches , and an angle of 25 ° opposite to the shorter side . Construct HBK = 25 ° ( Fig . 18 ) . From BH mark off BA = A H 24 " 14 " 25 14 " C Fig 18 . D. K 2.4 inches . With centre A and radius 1.4 inches describe an arc cutting BK in ...
Σελίδα xxii
... inch above ; a third parallel to the second , and 2 inches above . Draw a line making an angle of 42 ° with the lowest line , and cutting the other lines . Measure all the angles in the figure . 5. Draw a line , and two other lines ...
... inch above ; a third parallel to the second , and 2 inches above . Draw a line making an angle of 42 ° with the lowest line , and cutting the other lines . Measure all the angles in the figure . 5. Draw a line , and two other lines ...
Συχνά εμφανιζόμενοι όροι και φράσεις
AC is equal adjacent angles Algebra angle ABC angle ACB angle AGH angle BAC angle EDF angle equal angle GHD Axiom base BC bisect centre circle Constr Construct a triangle contained angle depends on Prop diagonals Divide a given draw a line equal in area equal to AC equal to twice equilateral triangle Euclid exterior angle figure of Prop geometrical given angle given line given point given straight line given triangle gnomon greater hypotenuse interior opposite angle isosceles triangle join length Let the straight M.A. Lond measure middle point opposite sides parallel to BC parallelogram produced quadrilateral quadrilateral figure rectangle AB rectangle AQ rectangle contained rhombus right angles right-angled triangle side AC sides equal square on AC theorem triangle ABC triangle DEF twice the rectangle UNIVERSITY TUTORIAL SERIES vertex
Δημοφιλή αποσπάσματα
Σελίδα 45 - 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.
Σελίδα 126 - If a straight line be bisected, and produced to any point ; the rectangle contained by the whole line thus produced, and the part of it produced, together with the square on half the line bisected, is equal to the square on the straight line which is made up of the half and the part produced.
Σελίδα 31 - 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 138 - To divide a given straight line into two parts, so that the rectangle contained by the whole and one of the parts, shall be equal to the square on the other part.
Σελίδα 2 - A diameter of a circle is a straight line drawn through the centre, and terminated both ways by the circumference.
Σελίδα 66 - 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 130 - If 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 99 - 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 26 - To draw a straight line at right angles to a given straight line, from a given point in the same.
Σελίδα 63 - Through a given point to draw a straight line parallel to a given straight line, Let A be the given point, and BC the given straight line : it is required to draw through the point A a straight line parallel to BC.