Elementary Geometry: Practical and TheoreticalUniversity Press, 1903 - 355 sider |
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Resultat 1-5 av 41
Side 12
... formed . 57 O fig . 19 . Ex . 37. Measure the angles of your set square ( i ) directly , ( ii ) by making a copy on paper and measuring the copy . It is difficult to draw a straight line right to the corner of a set square ; it is ...
... formed . 57 O fig . 19 . Ex . 37. Measure the angles of your set square ( i ) directly , ( ii ) by making a copy on paper and measuring the copy . It is difficult to draw a straight line right to the corner of a set square ; it is ...
Side 16
... formed . What is their sum ? How many right angles is the sum equal to ? E D F fig . 28 . A Ex . 63 . From a point O , draw a set of straight fig . 29 . lines as in fig . 29 . Guess the size of the angles so formed ; verify by ...
... formed . What is their sum ? How many right angles is the sum equal to ? E D F fig . 28 . A Ex . 63 . From a point O , draw a set of straight fig . 29 . lines as in fig . 29 . Guess the size of the angles so formed ; verify by ...
Side 53
... Prick a number of holes through the double paper , forming any pattern . On opening the paper you will find that the pin - holes have marked out a symmetrical figure . Join corresponding points as in fig . 72. Notice that SYMMETRY 53.
... Prick a number of holes through the double paper , forming any pattern . On opening the paper you will find that the pin - holes have marked out a symmetrical figure . Join corresponding points as in fig . 72. Notice that SYMMETRY 53.
Side 56
... formed by a wall built up out of the water ; what would you call the boundary which separates the wall from the air and water ? Has it any thickness ? Has it any length ? Has it any breadth ? A surface has length and breadth , but no ...
... formed by a wall built up out of the water ; what would you call the boundary which separates the wall from the air and water ? Has it any thickness ? Has it any length ? Has it any breadth ? A surface has length and breadth , but no ...
Side 65
... formed is equal to two right angles . fig . 75 . Data To The st . line AO meets the st . line BC at O. prove that L BOA + AOC = 2 rt . 4 s . Construction Draw OD to represent the line through O per- pendicular to BC . Proof △ BOA = 4 ...
... formed is equal to two right angles . fig . 75 . Data To The st . line AO meets the st . line BC at O. prove that L BOA + AOC = 2 rt . 4 s . Construction Draw OD to represent the line through O per- pendicular to BC . Proof △ BOA = 4 ...
Andre utgaver - Vis alle
Elementary Geometry Practical and Theoretical Charles Godfrey,Arthur Warry Siddons Uten tilgangsbegrensning - 1909 |
Elementary Geometry: Practical and Theoretical Charles Godfrey,Arthur Warry Siddons Ingen forhåndsvisning tilgjengelig - 2015 |
Elementary Geometry: Practical and Theoretical C. Godfrey,A. W. Siddons Ingen forhåndsvisning tilgjengelig - 2020 |
Vanlige uttrykk og setninger
AABC altitude base BC bisects Calculate centimetres centre chord circle of radius circumcentre circumcircle circumference circumscribed common tangent concyclic Constr Construct a triangle Construction Proof cyclic quadrilateral Data diagonal diameter distance divided Draw a circle Draw a straight equal circles equiangular equidistant equilateral triangle equivalent find a point Find the area fixed point Give a proof given circle given line given point given straight line hypotenuse inch paper inscribed intersect isosceles trapezium isosceles triangle LAOB LAPB locus of points Measure mid-point miles opposite sides parallelogram Plot the locus polygon produced protractor Q. E. D. Ex quadrilateral ABCD radii rect rectangle rectangle contained reflex angle Repeat Ex rhombus right angles right-angled triangle segment set square similar triangles subtends tangent THEOREM trapezium triangle ABC units of length vertex vertical angle
Populære avsnitt
Side 88 - If two triangles have two angles of the one equal to two angles of the other, each to each, and also one side of the one equal to the corresponding side of the other, the triangles are congruent.
Side 269 - To describe an isosceles triangle, having each of the angles at the base double of the third angle.
Side 206 - 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.
Side 342 - Pythagoras' theorem states that the square of the length of the hypotenuse of a right-angled triangle is equal to the sum of the squares of the lengths of the other two sides.
Side 270 - If a straight line touch a circle, and from the point of contact a chord be drawn, the angles which this chord makes with the tangent are equal to the angles in the alternate segments.
Side 186 - This sub-division shows that the square on the hypotenuse of the above right-angled triangle is equal to the sum of the squares on the sides containing the right angle.
Side 206 - If a straight line be divided into two equal parts, and also into two unequal parts, the rectangle contained by the unequal parts, together with the square on the line between the points of section, is equal to the square on half the line.
Side 136 - To draw a straight line through a given point parallel to a given straight line. Let A be the given point, and BC the given straight line.
Side 214 - A point moves so that the sum of the squares of its distances from the points (0, 0), (1, 0) is constant.
Side 123 - The difference between any two sides of a triangle is less than the third side.