Elements of geometry and mensurationLongman, Brown, Green, and Longmans, 1854 - 192 σελίδες |
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Αποτελέσματα 1 - 5 από τα 89.
Σελίδα 4
... plane and curved . A plane surface is one on which a straight line may be drawn in any part of it , wholly coincident with the surface . Or , in other words , if any two points are taken in the surface , and a straight line be drawn ...
... plane and curved . A plane surface is one on which a straight line may be drawn in any part of it , wholly coincident with the surface . Or , in other words , if any two points are taken in the surface , and a straight line be drawn ...
Σελίδα 6
... plane surface bounded by three straight lines meeting together at their extremities , so as entirely to enclose a space , is called a triangle ; and the three straight lines are called the sides of the triangle . Thus each of the ...
... plane surface bounded by three straight lines meeting together at their extremities , so as entirely to enclose a space , is called a triangle ; and the three straight lines are called the sides of the triangle . Thus each of the ...
Σελίδα 7
... plane of this paper , they never meet however far produced either towards the right hand or the left . 13. PARALLELOGRAMS . A parallelogram is a plane surface bounded by four straight lines , called its sides , of which each opposite ...
... plane of this paper , they never meet however far produced either towards the right hand or the left . 13. PARALLELOGRAMS . A parallelogram is a plane surface bounded by four straight lines , called its sides , of which each opposite ...
Σελίδα 8
... plane surface bounded by four straight lines of which two only are parallel , is called a trapezium , as ABCD , where AD is parallel to BC , but AB is not parallel to CD . B D 16. CIRCLES . A circle is a plane surface bounded by a ...
... plane surface bounded by four straight lines of which two only are parallel , is called a trapezium , as ABCD , where AD is parallel to BC , but AB is not parallel to CD . B D 16. CIRCLES . A circle is a plane surface bounded by a ...
Σελίδα 9
Thomas Lund. plane of the paper bounded by the curved line ABCDA is a circle , when from the centre O all straight lines to the circumference , as OA , OB , OC , OD , are equal to each other . Any one of the lines OA , OB , OC , OD is ...
Thomas Lund. plane of the paper bounded by the curved line ABCDA is a circle , when from the centre O all straight lines to the circumference , as OA , OB , OC , OD , are equal to each other . Any one of the lines OA , OB , OC , OD is ...
Άλλες εκδόσεις - Προβολή όλων
Συχνά εμφανιζόμενοι όροι και φράσεις
ABCDEF acres base bisect breadth centre chain chord circular circum circumference circumscribing circle compasses construction contained continued fraction curved decimal Diagonal Scale diagram diameter distance divided draw drawn edge equilateral triangle find the area find the length fraction frustum given angle given circle given line given point given straight line given triangle half height Hence hexagon inscribed instrument intersecting join Let ABCD lineal unit magnitude meet multiplied number of equal number of sides number of units opposite angle parallelogram perimeter perpendicular plane surface plot points of division PROB produced PROP proportional Protractor radii radius ratio rectangle rectangular regular polygon represent right angles shew shewn similar similar triangles square feet square foot square inches straight edge subtends suppose trapezium triangle ABC vernier vertex whole yards
Δημοφιλή αποσπάσματα
Σελίδα 32 - If a straight line be divided into any two parts, the square of the whole line is equal to the squares of the two parts, together with twice the rectangle contained by the parts.
Σελίδα 19 - To draw a straight line at right angles to a given straight line, from a given point in the same.
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.
Σελίδα 32 - If the square described upon one of the sides of a triangle, be equal to the squares described upon the other two sides of it; the angle contained by these two sides is a right angle.
Σελίδα 43 - The angle in a semicircle is a right angle ; the angle in a segment greater than a semicircle is less than a right angle ; and the angle in a segment less than a semicircle is greater than a right angle.
Σελίδα 17 - 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 22 - Theorem. The greater side of every triangle is opposite to the greater angle. Let ABC be a triangle of which the side AC is greater than the side AB ; the angle ABC is also greater than the angle BCA. Because AC is greater than AB, make...
Σελίδα 192 - The circumference of every circle is supposed to be divided into 360 equal parts called degrees, and each degree into 60 equal parts called minutes, and each minute into 60 equal parts called seconds, and these into thirds, fourths, &c.
Σελίδα 126 - Upon a given straight line to describe a segment of a circle, which shall contain an angle equal to a given rectilineal angle.
Σελίδα 20 - To draw a straight line perpendicular to a given straight line of an unlimited length, from a given point without it.