First book of mathematicsA. & C. Black, 1872 - 124 sider |
Inni boken
Resultat 1-5 av 26
Side 14
... half the distance between the two given points . Let A and B be the two 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 ...
... half the distance between the two given points . Let A and B be the two 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 ...
Side 16
... 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 . PERPENDICULARS . Let AB be the line , and C 16 FIRST BOOK OF ...
... 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 . PERPENDICULARS . Let AB be the line , and C 16 FIRST BOOK OF ...
Side 34
... half diagonal . The lines joining the ends of the diagonal to the ends of the perpendicular will form the square required . The perpendicular will be the other diagonal . Note . From this it will be seen that the diagonals of a square ...
... half diagonal . The lines joining the ends of the diagonal to the ends of the perpendicular will form the square required . The perpendicular will be the other diagonal . Note . From this it will be seen that the diagonals of a square ...
Side 36
... half as radius , describe a semicircle ; join the point ( C ) where the arc cuts the side of the acute angle to the other end ( A ) of the hypotenuse ( 72 ) . 135. Note 1. - In a right - angled triangle , there is always one angle known ...
... half as radius , describe a semicircle ; join the point ( C ) where the arc cuts the side of the acute angle to the other end ( A ) of the hypotenuse ( 72 ) . 135. Note 1. - In a right - angled triangle , there is always one angle known ...
Side 37
... half of the hypotenuse is equal to the line from its middle point to the right angle . Problem 21 . 136. To describe a rectangle , the diagonal and a side being given . By case 3 of the preceding problem , make a right- angled triangle ...
... half of the hypotenuse is equal to the line from its middle point to the right angle . Problem 21 . 136. To describe a rectangle , the diagonal and a side being given . By case 3 of the preceding problem , make a right- angled triangle ...
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Vanlige uttrykk og setninger
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
Populære avsnitt
Side 5 - The circumference of every circle is supposed to be divided into...
Side 48 - UPON a given straight line to describe a segment of a circle containing an angle equal to a given rectilineal angle.
Side 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.
Side 39 - Parallelograms on the same base, and between the same parallels, are equal to one another.
Side 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.
Side 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.
Side 118 - Divide the area by . 7854 and extract the square root of the quotient.
Side 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.
Side 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.
Side 4 - It is a line every point of which is at the same distance from a point within it called the centre.