Mensuration for Beginners: With Numerous ExamplesMacmillan and Company, 1869 - 296 sider |
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Resultat 1-5 av 46
Side 2
... suppose that a point in Geometry has any size . Lines may be straight or curved . A line is represented in a printed book by a band of ink , which may be very narrow , but still has some breadth ; we must not however suppose that a line ...
... suppose that a point in Geometry has any size . Lines may be straight or curved . A line is represented in a printed book by a band of ink , which may be very narrow , but still has some breadth ; we must not however suppose that a line ...
Side 4
... Suppose in the diagram to Art . 5 that the angle FEG is equal to the angle GEH ; then the whole angle FEH is twice the angle FEG . Similarly it is easy to un- derstand what is meant by the statement that a certain angle is three times ...
... Suppose in the diagram to Art . 5 that the angle FEG is equal to the angle GEH ; then the whole angle FEH is twice the angle FEG . Similarly it is easy to un- derstand what is meant by the statement that a certain angle is three times ...
Side 10
... suppose CE to be parallel to BA . Then the angle ECD is equal to the angle ABC by Art . 20 ; and the angle ACE is equal to the angle BAC by Art . 21. Thus the whole B angle ACD is equal to the sum of the two angles ABC and BAC . 23. The ...
... suppose CE to be parallel to BA . Then the angle ECD is equal to the angle ABC by Art . 20 ; and the angle ACE is equal to the angle BAC by Art . 21. Thus the whole B angle ACD is equal to the sum of the two angles ABC and BAC . 23. The ...
Side 15
... suppose that a ruler and compasses are employed ; these instruments will be sufficient for our pur- pose . Other instruments are often useful , such as a square and parallel rulers ; but they are not absolutely necessary . The solutions ...
... suppose that a ruler and compasses are employed ; these instruments will be sufficient for our pur- pose . Other instruments are often useful , such as a square and parallel rulers ; but they are not absolutely necessary . The solutions ...
Side 18
... Suppose we are required to divide it into five equal parts . any A .. From A draw straight line AC , and from B draw the straight line BD parallel to AC . Set off along AC four lengths , all equal , and mark the points of division 1 , 2 ...
... Suppose we are required to divide it into five equal parts . any A .. From A draw straight line AC , and from B draw the straight line BD parallel to AC . Set off along AC four lengths , all equal , and mark the points of division 1 , 2 ...
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Vanlige uttrykk og setninger
12 feet 12 inches 20 inches 24 feet 9 inches ABCD acres breadth centre chains chord of half circle circumference cubic feet cubic foot cubic inches curved surface diagonal distance divided edge ends Examples feet 6 inches feet 9 feet long feet respectively find the area find the cost find the height find the length Find the number find the radius find the volume following dimensions frustum half the arc height 2 feet hypotenuse inches long inches wide multiply number of cubic parallel sides parallelogram perimeter perpendicular plane parallel polygon prism prismoid pyramid radii radius of base rectangle rectangular parallelepiped rectilineal figure regular polygon rhombus right angles right circular cone right circular cylinder Rule of Art sector segment shew slant height solid solve some exercises sphere square feet square inches square root square yard superficial primes Suppose trapezoid wedge whole surface yards 1 foot yards 2 feet
Populære avsnitt
Side 4 - When a straight line standing on another straight line makes the adjacent angles equal to one another, each of the angles is called a right angle ; and the straight line which stands on the other is called a perpendicular to it.
Side 124 - A diameter of a circle is a straight line drawn through the centre, and terminated both ways by the circumference.
Side 17 - To draw a straight line through a given point parallel to a given straight line. Let A be the given point, and BC the given straight line : it is required to draw a straight line through the point A parallel to the straight line BC. In BC take any point g D, and join AD ; at the point A in the straight line AD, make the angle DAE equal to the angle
Side 74 - RULE. — From half the sum of the three sides, subtract each side separately; multiply the half -sum and the three remainders together; the square root of the product is the area.
Side 18 - To draw a straight line perpendicular to a given straight line of an unlimited length, from a given point without it. Let AB be the given straight line, which may be produced to any length both ways, and let c be a point without it.
Side 7 - A circle is a plane figure contained by one line, which is called the circumference, and is such that all straight lines drawn from a certain point within the figure to the circumference, are equal to one another.
Side 4 - Parallel straight lines are such as are in the same plane, and which being produced ever so far both ways, do not meet.
Side 272 - The content of a cistern is the sum of two cubes whose edges are 10 inches and 2 inches, and the area of its base is the difference of two squares whose sides are 1¿ and If feet.
Side 155 - To the areas of the two ends of the frustum add the square root of their product ; multiply the sum by the height of the frustum ; and one-third of the product will be the volume.
Side 230 - Add into one sum 39 times the square of the bung diameter, 25 times the square of the head diameter, and 26 times the product of the...