First book of mathematicsA. & C. Black, 1872 - 124 σελίδες |
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Αποτελέσματα 1 - 5 από τα 10.
Σελίδα 5
... respects ; all their radii are equal ; their diameters are equal ; their circumferences are equal ; and their areas are equal . The two circles are identical , and one could be laid upon the other , so that the two centres and the two ...
... respects ; all their radii are equal ; their diameters are equal ; their circumferences are equal ; and their areas are equal . The two circles are identical , and one could be laid upon the other , so that the two centres and the two ...
Σελίδα 29
... respects . BC is equal to AD ; AB to CD . The angles A and C are equal , also the angles B and D. A diagonal , as BD , divides ABCD into two triangles , ABD , CBD , equal in all respects . 109. There are four kinds of parallelograms ...
... respects . BC is equal to AD ; AB to CD . The angles A and C are equal , also the angles B and D. A diagonal , as BD , divides ABCD into two triangles , ABD , CBD , equal in all respects . 109. There are four kinds of parallelograms ...
Σελίδα 32
... respects to any given triangle . Make a triangle having its sides equal , each to each , to the sides of the given triangle ; for it is a geome- trical truth , that- * Something that is manifest , or follows easily from what has gone ...
... respects to any given triangle . Make a triangle having its sides equal , each to each , to the sides of the given triangle ; for it is a geome- trical truth , that- * Something that is manifest , or follows easily from what has gone ...
Σελίδα 33
... respects to a given triangle- Make two sides and the contained angle equal , each to each , to like parts in the given triangle , and join the ends of the sides ; for- Two triangles are equal in all respects when they have two sides and ...
... respects to a given triangle- Make two sides and the contained angle equal , each to each , to like parts in the given triangle , and join the ends of the sides ; for- Two triangles are equal in all respects when they have two sides and ...
Σελίδα 35
... respects to a given triangle- Make any side and the adjacent angles equal , each to each , to like parts in the given triangle ; for— Two triangles are equal in all respects when they have a side and the adjacent angles in one equal ...
... respects to a given triangle- Make any side and the adjacent angles equal , each to each , to like parts in the given triangle ; for— Two triangles are equal in all respects when they have a side and the adjacent angles in one equal ...
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Συχνά εμφανιζόμενοι όροι και φράσεις
20 feet ABCD acute angle adjacent angles adjacent sides algebra altitude angle equal angular points Ans.-1 acre arc cutting called central angle centre circumference contained denotes describe an arc diagonal divide divisor drawn equal angles equal sides equation equidistant equilateral triangle expressed extract the square ference Find the area Find the length foot formula geometrical truth given angle given line given point given square given straight line given triangle gonal hexagon hypotenuse inches inscribed line joining meet middle point multiply Nonagon Note number of degrees number of sides opposite angles opposite side parallel lines parallelogram pendicular perpendicular plane figure point of bisection poles produced proportion quadrilateral radius equal ratio rectangle rectilineal figure regular polygon rhombus right angles right-angled triangle rood rule sides equal square equal square feet square root square yards subtracted surface tangent trapezium trapezoid unknown quantity
Δημοφιλή αποσπάσματα
Σελίδα 5 - The circumference of every circle is supposed to be divided into...
Σελίδα 48 - UPON a given straight line to describe a segment of a circle containing an angle equal to a given rectilineal angle.
Σελίδα 3 - A plane rectilineal angle is the inclination of two straight lines to one another, which meet together, but are not in the same straight line.
Σελίδα 39 - Parallelograms on the same base, and between the same parallels, are equal to one another.
Σελίδα 59 - Quadrilateral ; of five sides a Pentagon ; of six sides a Hexagon ; of seven sides a Heptagon ; of eight sides an Octagon ; of nine sides a Nonagon ; of ten sides a Decagon ; of twelve sides a Dodecagon.
Σελίδα 112 - Polygons are those which have more than four sides. They receive particular names from the number of their sides ; thus a pentagon has five sides, a hexagon has six sides, a heptagon seven, an octagon eight, a nonagon nine, a decagon ten, an undecagon eleven, and a dodecagon has twelve sides.
Σελίδα 118 - Divide the area by . 7854 and extract the square root of the quotient.
Σελίδα 82 - To rearrange an equation you can • add the same quantity to both sides • subtract the same quantity from both sides • multiply both sides by the same quantity • divide both sides by the same quantity.
Σελίδα 107 - Find the area of a field in the form of a trapezoid whose altitude is 120 m and whose parallel sides are 130 m and 180 m.
Σελίδα 4 - It is a line every point of which is at the same distance from a point within it called the centre.