Practical Plane Geometry: Giving the Simplest Modes of Constructing Figures Contained in One Plane and Geometrical Construction on the GroundCrosby Lockwood & son, 1890 - 172 sider |
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Side 18
... feet long , construct a figure , and find by measurement how near a wall the foot of the ladder must be placed , that its top may just reach 17 feet up the wall . Ans . 10 feet 6 inches . 74. PROBLEM 5. - To let fall a perpendicular on ...
... feet long , construct a figure , and find by measurement how near a wall the foot of the ladder must be placed , that its top may just reach 17 feet up the wall . Ans . 10 feet 6 inches . 74. PROBLEM 5. - To let fall a perpendicular on ...
Side 29
... feet , and the angles at the base are 60 ° and 45 ° ; construct a figure and find by measure- ment the perpendicular distance of the vertex from the base . -Ans . 31.7 ft . ( 2. ) The base of an iosceles triangle being. PRACTICAL PLANE ...
... feet , and the angles at the base are 60 ° and 45 ° ; construct a figure and find by measure- ment the perpendicular distance of the vertex from the base . -Ans . 31.7 ft . ( 2. ) The base of an iosceles triangle being. PRACTICAL PLANE ...
Side 39
... of the parallelogram EBCD . Let the lengths of the parallel sides be 5 feet. PRACTICAL PLANE GEOMETRY . 39 regular polygon trapezoid Construction of segments to contain given angles, and application to the construction of triangles.
... of the parallelogram EBCD . Let the lengths of the parallel sides be 5 feet. PRACTICAL PLANE GEOMETRY . 39 regular polygon trapezoid Construction of segments to contain given angles, and application to the construction of triangles.
Side 40
... feet and 2 feet , and the lengths of the slopes 4 feet and 3 feet . B E D Fig . 70 . Draw the straight line A D , Fig , 71 , 5 feet long : set off 2 feet from D to E ; from centres A and E , with radii of 4 feet B E Fig . 71 . and 3 ...
... feet and 2 feet , and the lengths of the slopes 4 feet and 3 feet . B E D Fig . 70 . Draw the straight line A D , Fig , 71 , 5 feet long : set off 2 feet from D to E ; from centres A and E , with radii of 4 feet B E Fig . 71 . and 3 ...
Side 41
... feet long , and set off D E equal to 3 feet ; make the angles E A B , and A E B , equal to 60 ° and 45 ° , respectively , and complete the parallelogram E B C D. Let the width of a ditch be 8 feet , its depth 34 feet , and the ...
... feet long , and set off D E equal to 3 feet ; make the angles E A B , and A E B , equal to 60 ° and 45 ° , respectively , and complete the parallelogram E B C D. Let the width of a ditch be 8 feet , its depth 34 feet , and the ...
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Practical Plane Geometry: Giving the Simplest Modes of Constructing Figures ... J. F. Heather Ingen forhåndsvisning tilgjengelig - 2017 |
Vanlige uttrykk og setninger
angular points base bisecting line bisecting the angle centre chords circles described circles to pass circles to touch circumference Crown 8vo D. K. CLARK decagon describe a circle diagonal diameter distance divided draw a circle draw a straight Engineer equal angles equi equiangular equilateral triangle EXERCISES Fcap given angle given circle given line given point given radius given straight line given triangle Illustrations inches long Inscribe a regular isosceles triangle join length line drawn mean proportional METHOD metres parallelogram perpendicular Plates point F polygon primary division Prob radii Reason rectangle regular polygon represent required circles required triangle respectively Revised right angles right-angled triangle scale Secants segment sides A B strike arcs subdivision tangent Theor touch the circle touch the given vertex vertical angle yards
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