Explanatory mensuration for the use of schools1871 |
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Página 2
... greater than a right angle . Thus the angle DBE is an obtuse angle , being greater han the right angle DBA . E A B XIII . An acute angle is an angle that is 2 DEFINITIONS .
... greater than a right angle . Thus the angle DBE is an obtuse angle , being greater han the right angle DBA . E A B XIII . An acute angle is an angle that is 2 DEFINITIONS .
Página 24
... greater area , and by how much ? ( 33 ** ) A rectangular garden is to be cut off from a rect- angular field , so as to contain a quarter of an acre . One side of the field is taken for a side of the plot , and measures 3 chains ; find ...
... greater area , and by how much ? ( 33 ** ) A rectangular garden is to be cut off from a rect- angular field , so as to contain a quarter of an acre . One side of the field is taken for a side of the plot , and measures 3 chains ; find ...
Página 26
... greater or less than the diagonal of a of the same area ? square ( 49 ) The building of a wall round a square field , at 4s . per yd . , costs £ 112 ; what would have been the charge if the field had been in the shape of a rectangle ...
... greater or less than the diagonal of a of the same area ? square ( 49 ) The building of a wall round a square field , at 4s . per yd . , costs £ 112 ; what would have been the charge if the field had been in the shape of a rectangle ...
Página 54
... greater accuracy is desirable , then , to find the circumference , multiply the diameter by 3 · 1416 or by ; and to find the diameter , divide the circum- ference by 3 · 1416 or by 3 . 355 Note 3. - The circumferences of circles have ...
... greater accuracy is desirable , then , to find the circumference , multiply the diameter by 3 · 1416 or by ; and to find the diameter , divide the circum- ference by 3 · 1416 or by 3 . 355 Note 3. - The circumferences of circles have ...
Página 57
... greater accuracy is desirable , then the following rules may be used for finding the area of a circle : -Multiply the square of the diameter by 7854 , and the product is the area ; or , multiply the square of the circumference by 07958 ...
... greater accuracy is desirable , then the following rules may be used for finding the area of a circle : -Multiply the square of the diameter by 7854 , and the product is the area ; or , multiply the square of the circumference by 07958 ...
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Términos y frases comunes
ABCD Area of base Arithmetic avoirdupois axis centre chains chord of half circle circular ends circumference cone contains cube cubic feet cubic foot cubic inches curved surface cylinder depth diagonal dimensions divide edge EFGH ellipse equal Example 1.-Find Example 2.-The find its volume find the area Find the cost find the diameter find the height find the length Find the number Find the volume Formulæ frustum gonal half the arc hypothenuse Note 1.-To find oblique parallel sides parallelogram parallelopiped perimeter perpendicular distance perpendicular height poles polygon prism prismoid Prob pyramid quotient radius rectangle respectively rhombus right-angled triangle right-cone ring roods sector segment semicircle shape side faces slant height solid sphere square pyramid square root straight line thick trapezium trapezoid water weighs 1000 wedge weighs 1000 oz whole surface wide width yards zoid
Pasajes populares
Página 23 - 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.
Página 118 - A sphere is a solid bounded by a curved surface, every point of which is equally distant from a point within called the center.
Página 63 - Or, from 8 times the chord of half the arc, subtract the chord of the whole arc, and $ of the remainder will be the length of the arc, nearly.
Página 33 - Multiply the sum of the parallel sides by the perpendicular distance between them, and half the product will be the area.
Página 19 - A rectangle is a four-sided figure like a square, in which the sides are perpendicular to each other, but the adjacent sides are not equal. 280. A parallelogram is a foursided figure which has its opposite sides equal and parallel, but its angles not right angles. The line DE, perpendicular to the base, is called the altitude.
Página 149 - Such a work will be of value to a candidate as a test of his ability to work the Arithmetical problems he is likely to have given him to solve in his examination ; but when it is used simply as a means of cramming the pupil, it becomes pernicious. We notice Mr. Hiley has carefully arranged...