Technical Drawing - Exam Papers - Higher - 1999 - Paper 1

Question 4

Fig. 3 shows the projections of a solid composed of a right equilateral triangular based pyramid standing on an equilateral triangular prism.

Also shown are the projections of a square based prism of 45 mm side which penetrates the solid as shown.

Draw the projections of both solids showing all lines of interpenetration.