First book of mathematicsA. & C. Black, 1872 - 124 σελίδες |
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Αποτελέσματα 1 - 5 από τα 38.
Σελίδα 12
... line on a plane between any two points in the plane . This is best done by ... lines . This is done by first drawing with it a straight line extending its whole length ; then ... given 12 FIRST BOOK OF MATHEMATICS . ELEMENTARY PROBLEMS,
... line on a plane between any two points in the plane . This is best done by ... lines . This is done by first drawing with it a straight line extending its whole length ; then ... given 12 FIRST BOOK OF MATHEMATICS . ELEMENTARY PROBLEMS,
Σελίδα 13
... given distance . This is done by a pair of compasses , having a pencil or other marker firmly fixed to one of the ... line a part equal to any given line or distance . Find two or more points at the same given distance from a given point ...
... given distance . This is done by a pair of compasses , having a pencil or other marker firmly fixed to one of the ... line a part equal to any given line or distance . Find two or more points at the same given distance from a given point ...
Σελίδα 14
... given points , and the length of the line C the given distance . It is required to find a point , D , whose dis- tances from A and B shall each be equal to the line C. From the centres A and B , with a radius equal to C , describe arcs ...
... given points , and the length of the line C the given distance . It is required to find a point , D , whose dis- tances from A and B shall each be equal to the line C. From the centres A and B , with a radius equal to C , describe arcs ...
Σελίδα 15
... given angle ; that is , to divide it into two equal angles . Let ABC be the angle to be bisected . In its sides AB ... line or an arc of a circle ; that is , to divide it into two equal straight lines or two equal arcs . Let AB be the line ...
... given angle ; that is , to divide it into two equal angles . Let ABC be the angle to be bisected . In its sides AB ... line or an arc of a circle ; that is , to divide it into two equal straight lines or two equal arcs . Let AB be the line ...
Σελίδα 16
... line to the middle of the small part ; try if this is a true half of the line , and so on . Problem 6 . 69. To raise a perpendicular at a given point in a straight line . 1. When the point is not far from the middle of the line ...
... line to the middle of the small part ; try if this is a true half of the line , and so on . Problem 6 . 69. To raise a perpendicular at a given point in a straight line . 1. When the point is not far from the middle of the line ...
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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.