ST Activity 7.3 Figures Draw an $ 7.12(a) to (d) show four objects drawn in first-angle orthographic projection. nisometric drawing of each of the four objects. Insert only the hidden detail of elone brinit biriquipo the holes and circular parts. 45 60 Ø30 60 80 120 (a) R 25 60 90 70 राज 75 071 8 58 R 27 140 70 100 (b) Ø100 5 x 45 (d) (c) Figure 7.12 Four objects drawn in first-angle orthographic projection R
