First book of mathematicsA. & C. Black, 1872 - 124 sider |
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Resultat 1-5 av 13
Side 7
... angular point or vertex of an angle is the point of meeting of the lines which form the angle ; these lines are called the sides of the angle . An angle is named by a single letter at its vertex , or , when there is more than one angle ...
... angular point or vertex of an angle is the point of meeting of the lines which form the angle ; these lines are called the sides of the angle . An angle is named by a single letter at its vertex , or , when there is more than one angle ...
Side 27
... angular point opposite to the base is then called the vertex of the triangle : the angle there is called the vertical angle . 97. The ALTITUDE , or height of a triangle , is the per- pendicular from one angular point on the opposite ...
... angular point opposite to the base is then called the vertex of the triangle : the angle there is called the vertical angle . 97. The ALTITUDE , or height of a triangle , is the per- pendicular from one angular point on the opposite ...
Side 43
... angular points , join it to the middle point of the oppo- site side . If it is at the middle of a side , join it to the opposite angular point ; for- The straight line from the vertex of any angle of a triangle to the middle of the ...
... angular points , join it to the middle point of the oppo- site side . If it is at the middle of a side , join it to the opposite angular point ; for- The straight line from the vertex of any angle of a triangle to the middle of the ...
Side 47
... angular points . Bisect any two sides , and so on as above . Problem 38 . 164. To find the centre of a circle , only an arc of it being given . Take any three points in the arc , and proceed with these as in Problem 37. The point in ...
... angular points . Bisect any two sides , and so on as above . Problem 38 . 164. To find the centre of a circle , only an arc of it being given . Take any three points in the arc , and proceed with these as in Problem 37. The point in ...
Side 59
... point within , equidistant from the angular points . It is also equidistant from the sides . 195. The APOTHEM of a regular polygon is the per- pendicular from the centre on any side . 196. A circle is said to be inscribed in a ...
... point within , equidistant from the angular points . It is also equidistant from the sides . 195. The APOTHEM of a regular polygon is the per- pendicular from the centre on any side . 196. A circle is said to be inscribed in a ...
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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.