Mensuration for Beginners: With Numerous ExamplesMacmillan and Company, 1869 - 296 σελίδες |
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Αποτελέσματα 1 - 5 από τα 23.
Σελίδα 31
... Proportion or the Rule of Three . 67. Examples : ( 1 ) Suppose AB = 5 , BC = 6 , DE = 7 , 56 : 7 : EF . 6 x 7 42 Thus EF = = 82 . 5 5 ( 2 ) Suppose AB = 5 , AC = 4 , DE = 7 , 5 : 47 : DF . Thus DF = 4 x 7 28 5 % . 5 5 68. Similar ...
... Proportion or the Rule of Three . 67. Examples : ( 1 ) Suppose AB = 5 , BC = 6 , DE = 7 , 56 : 7 : EF . 6 x 7 42 Thus EF = = 82 . 5 5 ( 2 ) Suppose AB = 5 , AC = 4 , DE = 7 , 5 : 47 : DF . Thus DF = 4 x 7 28 5 % . 5 5 68. Similar ...
Σελίδα 32
... Proportion that the product of EA into EB is equal to the product of EC into ED ; this is a very remarkable and very important property of the circle . 69. By the aid of similar triangles we can determine the height of an object when we ...
... Proportion that the product of EA into EB is equal to the product of EC into ED ; this is a very remarkable and very important property of the circle . 69. By the aid of similar triangles we can determine the height of an object when we ...
Σελίδα 33
... proportion to the sides of the other figure , but the angles of one figure are not equal to the angles of the other figure . 73. Similar rectilineal figures can always be divided into the same number of similar triangles . Thus , for ...
... proportion to the sides of the other figure , but the angles of one figure are not equal to the angles of the other figure . 73. Similar rectilineal figures can always be divided into the same number of similar triangles . Thus , for ...
Σελίδα 34
... Proportion . 75. Similar figures may occur which are bounded by curved lines as well as those which are bounded by ... proportion of AD to ad . Since AE - 2 and ae = 14 , any straight line as AD bears to the corresponding straight line ...
... Proportion . 75. Similar figures may occur which are bounded by curved lines as well as those which are bounded by ... proportion of AD to ad . Since AE - 2 and ae = 14 , any straight line as AD bears to the corresponding straight line ...
Σελίδα 45
... proportion which the length of the circumference of a circle bears to the length of the diameter : the proportion cannot indeed be stated exactly , but it can be stated with sufficient accuracy for any practical purpose . 101. The ...
... proportion which the length of the circumference of a circle bears to the length of the diameter : the proportion cannot indeed be stated exactly , but it can be stated with sufficient accuracy for any practical purpose . 101. The ...
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Συχνά εμφανιζόμενοι όροι και φράσεις
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
Δημοφιλή αποσπάσματα
Σελίδα 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.
Σελίδα 124 - A diameter of a circle is a straight line drawn through the centre, and terminated both ways by the circumference.
Σελίδα 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
Σελίδα 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.
Σελίδα 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.
Σελίδα 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.
Σελίδα 4 - Parallel straight lines are such as are in the same plane, and which being produced ever so far both ways, do not meet.
Σελίδα 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.
Σελίδα 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.
Σελίδα 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...