Elementary Plane Geometry: Inductive and DeductiveGinn, 1903 - 144 Seiten |
Im Buch
Ergebnisse 1-5 von 13
Seite 49
... Test with parallel rulers . Examine the equality of alternate angles . Examine whether the sum of interior angles on ... Apply tests with instruments . Give reasons , i.e. , proof . 3. If AB , CD intersect in O , and AO = OD , CO OB , what ...
... Test with parallel rulers . Examine the equality of alternate angles . Examine whether the sum of interior angles on ... Apply tests with instruments . Give reasons , i.e. , proof . 3. If AB , CD intersect in O , and AO = OD , CO OB , what ...
Seite 55
... test the accuracy of your construction . 3. Draw a number of straight lines of various lengths , and , by the method ... Apply tests . Give 7. With compasses and ruler only , construct a four - sided figure with opposite sides equal . How are ...
... test the accuracy of your construction . 3. Draw a number of straight lines of various lengths , and , by the method ... Apply tests . Give 7. With compasses and ruler only , construct a four - sided figure with opposite sides equal . How are ...
Seite 56
... Apply tests . Give proof . 12. Give proof that the diagonals of a parallelogram or rhombus are in general unequal . When are they equal ? 13. At what angle do the diagonals of a rhombus intersect ? Apply test . Give proof . 14. Draw AB ...
... Apply tests . Give proof . 12. Give proof that the diagonals of a parallelogram or rhombus are in general unequal . When are they equal ? 13. At what angle do the diagonals of a rhombus intersect ? Apply test . Give proof . 14. Draw AB ...
Seite 76
... Apply test . Give reasons . 3. Describe a circle , and with dividers and ruler place two equal chords in it . Join the ends of the chords to the centre . What is the relation between the angles these equal chords subtend at the centre ?
... Apply test . Give reasons . 3. Describe a circle , and with dividers and ruler place two equal chords in it . Join the ends of the chords to the centre . What is the relation between the angles these equal chords subtend at the centre ?
Seite 77
... Apply test . reasons . Give 16. Describe a circle ; draw a diameter , producing it ; and from a point A in the ... Apply tests . Give reasons . 17. The same question as the preceding , but with A within the circle . 18. Construct two ...
... Apply test . reasons . Give 16. Describe a circle ; draw a diameter , producing it ; and from a point A in the ... Apply tests . Give reasons . 17. The same question as the preceding , but with A within the circle . 18. Construct two ...
Andere Ausgaben - Alle anzeigen
Elementary Plane Geometry: Inductive and Deductive / By Alfred Baker Alfred Baker Keine Leseprobe verfügbar - 2015 |
Häufige Begriffe und Wortgruppen
50 millimetres ABCD adjusting the bevel angle ABC angle ACB angle BAC angle of 60 angles equal angular points Apply test centre chord circle of radius circle touching circumference construct a rectangle Construct a triangle Construct the triangle containing an angle Describe a circle Describe a regular Describe two circles diagonals distance dividers draw a line draw tangents drawn equal angles equilateral triangle exterior angle figure Give proof Give reasons Hence hypotenuse inches inscribe isosceles triangle measure middle point occupy with respect opposite angles opposite sides parallel lines parallel rulers parallel to BC parallelogram perpendicular position preceding question previous question protractor quadrilateral radii radius 40 millimetres rectangle equal regular hexagon regular pentagon remaining angles rhombus right angles right-angled triangle segment set-square side of BC similar triangles square straight line struct Test accuracy Test the accuracy three angles triangle ABC triangle with sides triangles are equal
Beliebte Passagen
Seite 68 - In any right-angled triangle, the square which is described on the side subtending the right angle is equal to the sum of the squares described on the sides which contain the right angle.
Seite 95 - When it is affirmed (for instance) that " if two straight lines in a circle intersect each other, the rectangle contained by the segments of the one is equal to the rectangle contained by the segments of the other...
Seite 42 - 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.
Seite 40 - Thus when it is said that the sum of the three angles of any triangle is equal to two right angles, this is a theorem, the truth of which is demonstrated by Geometry.
Seite 91 - 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.
Seite 17 - Euclid's, and show by construction that its truth was known to us ; to demonstrate, for example, that the angles at the base of an isosceles triangle are equal...
Seite 18 - If two angles of a triangle are equal, the sides opposite to these angles are equal 21 ^THEOREM 14.
Seite 86 - The angle at the centre of a circle is double the angle at the circumference on the same arc.
Seite 88 - The opposite angles of a quadrilateral inscribed in a circle are together equal to two right angles, with converse.
Seite 96 - BC, contained by the whole of the cutting line, and the part of it without the circle, is equal to the square of BD which meets it ; therefore the straight line BD touches the circle ACD : (in.