Mensuration for Beginners: With Numerous ExamplesMacmillan and Company, 1869 - 296 sider |
Inni boken
Resultat 1-5 av 41
Side 4
... perpendicular to it . Thus , in the figure , if the angle ABC is equal to the angle ABD each of them is a right angle , and AB is perpendicular to DC . An obtuse angle is an angle which is greater than a right angle . An acute angle is ...
... perpendicular to it . Thus , in the figure , if the angle ABC is equal to the angle ABD each of them is a right angle , and AB is perpendicular to DC . An obtuse angle is an angle which is greater than a right angle . An acute angle is ...
Side 6
... perpendicular drawn from the opposite angular point on the base . Any side of a parallelogram may be called the base ; then the height of the parallelogram is the perpendicular drawn from any point in the opposite side on the base . 14 ...
... perpendicular drawn from the opposite angular point on the base . Any side of a parallelogram may be called the base ; then the height of the parallelogram is the perpendicular drawn from any point in the opposite side on the base . 14 ...
Side 11
... perpendicular from C on AB . It is easy to ad- A F D B mit that the triangle BFC is equal to the triangle CDB , and that the triangle AFC is equal to the triangle CEA ; and hence it follows that ABC is equivalent to half ABDE . Hence ...
... perpendicular from C on AB . It is easy to ad- A F D B mit that the triangle BFC is equal to the triangle CDB , and that the triangle AFC is equal to the triangle CEA ; and hence it follows that ABC is equivalent to half ABDE . Hence ...
Side 12
... drawn to the point of con- tact will be perpendicular to the straight line . Э 32. Let BAD and BED be angles in the same seg- ment BAED of a circle : these angles will be equal . A E B D 33. Let AB be a dia- meter of a circle 12 THEOREMS .
... drawn to the point of con- tact will be perpendicular to the straight line . Э 32. Let BAD and BED be angles in the same seg- ment BAED of a circle : these angles will be equal . A E B D 33. Let AB be a dia- meter of a circle 12 THEOREMS .
Side 14
... perpendicular from the right angle on the hypo- tenuse : then the triangles DBA and DAC will be si- milar to the triangle ABC . D B E D 38. Let AB and CD be two chords of a circle ; let them meet , produced if necessary , at E ; join BC ...
... perpendicular from the right angle on the hypo- tenuse : then the triangles DBA and DAC will be si- milar to the triangle ABC . D B E D 38. Let AB and CD be two chords of a circle ; let them meet , produced if necessary , at E ; join BC ...
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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...