Calendar: 1890-1891 Page 780

cxv111 ENGINEERING DEPARTMENT 12 On line AB as base and to scale of 25 to tbe inch construct an irregular octagon from the following data Ane- BAG 20 Side AB 70 יל ר יל יל מ BAD 35 AH 45 52 Diagonal AC 70 Β AF 85 120 110 83 BAR 135 97 Λ£ 70 Below this and on line somewhat shorter than AB as new base construct smaller but similar figure 13 prism base hexagon of 1" side has its axis vertical and 5" in length It penetrates sphere of diameter The centre of each solid is in the same point Give the line of penetration 14 rod 10' high stands erect 17' from this and due from it stands second rod 5' long leaning directly from the other and making with the ground an angle of 60 cord is stretched tightly from the top of one rod to the top of the other What is its length Give necessary plan and elevation Scale to the foot FIRST YEAR county map is drawn to scale of to the mile Purton is due north of Snelling and five miles three furlongs from it Cheston in the west of the county is three miles seven furlongs from Snelling and five miles five furlongs Purton while Shirley is midway between the other three Represent the positions of those four places How far is Shirley from the others On opposite sides of line 3" long as base construct square and an equilateral triangle forming together an irregular pentagon Convert this pentagon into an isosceles triangle of equal area Construct rectangle having side AB If" long being the length of ths of the diagonal of the figure