First book of mathematicsA. & C. Black, 1872 - 124 σελίδες |
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Αποτελέσματα 1 - 5 από τα 26.
Σελίδα 1
... called a SOLID . solid , in a geometrical sense , need not have body or substance all through . An empty room , a vessel from which the air has been taken out , or a portion of space considered by itself , are solids , speaking ...
... called a SOLID . solid , in a geometrical sense , need not have body or substance all through . An empty room , a vessel from which the air has been taken out , or a portion of space considered by itself , are solids , speaking ...
Σελίδα 2
... called dimensions . 6. The forms and dimensions of solids , surfaces , and lines are the objects of geometry . 7. The ends of the edges of the leaf and the corners of the book are POINTS . A point has neither length nor breadth — no ...
... called dimensions . 6. The forms and dimensions of solids , surfaces , and lines are the objects of geometry . 7. The ends of the edges of the leaf and the corners of the book are POINTS . A point has neither length nor breadth — no ...
Σελίδα 3
... called its sides . 19. THE PERIMETER of a plane figure is the whole length of the line or lines which contain it . 20. THE AREA of a plane figure is the quantity or extent of surface which it contains . The Circle . 21. A CIRCLE is a ...
... called its sides . 19. THE PERIMETER of a plane figure is the whole length of the line or lines which contain it . 20. THE AREA of a plane figure is the quantity or extent of surface which it contains . The Circle . 21. A CIRCLE is a ...
Σελίδα 4
... called THE CENTRE . The bounding line , or perimeter , is called the cir- cumference of the circle . 22. The adjoining figure , B EABD , is a circle ; the point C is the centre , which is equidistant from every point in the ...
... called THE CENTRE . The bounding line , or perimeter , is called the cir- cumference of the circle . 22. The adjoining figure , B EABD , is a circle ; the point C is the centre , which is equidistant from every point in the ...
Σελίδα 5
... called degrees , and marked ° . Each degree is divided into 60 equal parts , called minutes , and marked ' . Each minute is divided into 60 equal parts , called seconds , and marked " . Thus , 31 ° 47 ′ 53 ′′ means , 31 degrees , 47 ...
... called degrees , and marked ° . Each degree is divided into 60 equal parts , called minutes , and marked ' . Each minute is divided into 60 equal parts , called seconds , and marked " . Thus , 31 ° 47 ′ 53 ′′ means , 31 degrees , 47 ...
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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.