First book of mathematicsA. & C. Black, 1872 - 124 sider |
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Resultat 1-5 av 17
Side 1
... less bent - that is , curved . 2. The edges or boundaries of the leaf are LINES . Each line has length , but not breadth , or next to none . In geometry , we speak of lines as if they had no breadth , though we cannot draw any line ...
... less bent - that is , curved . 2. The edges or boundaries of the leaf are LINES . Each line has length , but not breadth , or next to none . In geometry , we speak of lines as if they had no breadth , though we cannot draw any line ...
Side 9
... less ; but the arc subtending the same angle is always the same part of the whole circumfer- ence ; that is , of the same number of degrees . Varieties of Plane Rectilineal Angles . 48. A RIGHT ANGLE is an angle of 90 ° . The arc which ...
... less ; but the arc subtending the same angle is always the same part of the whole circumfer- ence ; that is , of the same number of degrees . Varieties of Plane Rectilineal Angles . 48. A RIGHT ANGLE is an angle of 90 ° . The arc which ...
Side 10
... less than a right angle . 52. AN OBTUSE ANGLE is greater than a right angle . In fig . 4 , p . 6 , the angle B is an acute angle , the angle H an obtuse angle . FIG . 7 E B AEC = BED ; CEB = AED . D 53. Angles such as AEC , BED , in the ...
... less than a right angle . 52. AN OBTUSE ANGLE is greater than a right angle . In fig . 4 , p . 6 , the angle B is an acute angle , the angle H an obtuse angle . FIG . 7 E B AEC = BED ; CEB = AED . D 53. Angles such as AEC , BED , in the ...
Side 14
... less than 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 ...
... less than 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 ...
Side 16
... less ; then mark off on the greater , from the sup- posed middle point , a part equal to the less . By the eye , divide the small remainder into two equal parts ; stretch out the compasses from the supposed middle of the line to the ...
... less ; then mark off on the greater , from the sup- posed middle point , a part equal to the less . By the eye , divide the small remainder into two equal parts ; stretch out the compasses from the supposed middle of the line to the ...
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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.