Introduction to Linear DrawingCummings, Hilliard,, 1825 - 64 σελίδες |
Αναζήτηση στο βιβλίο
Αποτελέσματα 1 - 5 από τα 7.
Σελίδα 10
... touch and form angles . Each side of each triangle must be perpendicular to some side of the other triangle . ( 3 ) 3. Make a trapezium . ( fig . 3. ) A Trapezium has four sides , of which , two , called the bases , are parallel . In ...
... touch and form angles . Each side of each triangle must be perpendicular to some side of the other triangle . ( 3 ) 3. Make a trapezium . ( fig . 3. ) A Trapezium has four sides , of which , two , called the bases , are parallel . In ...
Σελίδα 18
... touch . A tangent is a right line which touches a circle , but does not cut any of it off . If a right line be drawn from the centre of the circle or arc to the point of con- tact ( that is , the point where the tangent touches the ...
... touch . A tangent is a right line which touches a circle , but does not cut any of it off . If a right line be drawn from the centre of the circle or arc to the point of con- tact ( that is , the point where the tangent touches the ...
Σελίδα 19
... touch- ing a circle , it is said to be inscribed in a circle , and the circle circumscribes the polygon .. 18. Double an arc of a circle . ( fig . 6. ) This is more difficult than Prop . 11. First draw an arc and mark its centre , then ...
... touch- ing a circle , it is said to be inscribed in a circle , and the circle circumscribes the polygon .. 18. Double an arc of a circle . ( fig . 6. ) This is more difficult than Prop . 11. First draw an arc and mark its centre , then ...
Σελίδα 20
... 24 . The monitor will mark the centres , & c . When the circles touch either within or without , the point of con- tact and the two centres will be in a right line , and these may be tested with a rule . ( 16 ) Ө о ( 17 ) A regular 20.
... 24 . The monitor will mark the centres , & c . When the circles touch either within or without , the point of con- tact and the two centres will be in a right line , and these may be tested with a rule . ( 16 ) Ө о ( 17 ) A regular 20.
Σελίδα 24
... touching it on all sides . The centre of the circle may be found by rais- ing perpendiculars on the middle of any two sides until they cross each other . The point where they cross , is the centre . 39. Make a triangle whose three sides ...
... touching it on all sides . The centre of the circle may be found by rais- ing perpendiculars on the middle of any two sides until they cross each other . The point where they cross , is the centre . 39. Make a triangle whose three sides ...
Άλλες εκδόσεις - Προβολή όλων
Συχνά εμφανιζόμενοι όροι και φράσεις
Arithmetick axis called circumference circumscribe column comma cone cord CORINTHIAN ORDER cubick feet Cut a circle cylinder decimal Describe a circle diagonal divide DORICK ORDER dotted line draw a perpendicular Draw a right draw an arc Draw an oblique draw right lines ellipse ENTABLATURE equal sides Example fillets find the surface four sides given point graduated semicircle half diameter halves height hexagon horizontal lines hundredths inches long intercolumniation Ionick isoceles triangle length lengthened mark its centre measure Modules monitor Monitorial School Multiply the base obtuse ogee parallel sides parallelogram parallelopiped PEDESTAL plane parallel preceding figures Prob PROBLEM proportions pupil quarter quarter-round radius Raise a perpendicular rectangle regular polygon right angled triangle right line drawn RULE sandths scalene scalene triangle sided polygon sixth class smaller sides solid contents square inches square yards string subtract superficies tenths thousandths three equal torus trapezium triangular prism Tuscan upright