Calendar: 1883-1884 Page 658

vri'IJKD SCI1 liKfvi mil The sides 06 triangle are in the proportion of 4ר and 25 to each other Describe circle of nnproxiiuai area and show the method of obtaining the result Through the three angular points of the triangle No draw an ellipse Find the transverse diameters and th foci of the ellipse Show in plan and elevation cone base 25 diamete axis 3" ami vertical Show also sections illustrating th hyperbola parabola circle and triangle and print neatly th name on each of them Show in plan and elevation right cylinder of an dimensions when the centre of the upper end is verticall over the lowest point in the opposite end The elli be geometrical Two lines at right angles to each other appear in plan to meet at an angle of 110 One is inclined at 27 show the inclination of the other The plan of the axis of aright pyramid is inclined at 40 to the vertical plane its actual angle with the ground is 30 base of pyramid is square of 25" side the axis is 3" shpw plan and elevation 10 Show in plan and elevation right cone base 3" diameter and on the horizontal plane Axis 35" and vertical show the apex Draw line long inclined at 45 to it ie the plan of horizontal line 25י" above the Ο is the centre of sphere of 35 diameter show the intersection of the surfaces 11 The and II traces of plane are each inclined to xy at 50 from any point on the surface of the plane draw line perpendicular to it long show plan and elevati 12 right cylinder has its axis inclined at 50 to the right cone axis vertical touches it on one side sphere on the other the solids rest on the II show the tangenti 11 points on plan and elevation of the group of models Diraen- sione at pleasure as large as the paper will conveniently permit