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Technical Drawing  Exam Papers  Ordinary  2008  Paper 1Question 4Fig. 4 shows a circle C with a point P on its circumference. A portion of a circle D with a point Q on its circumference is in contact with the circle C as shown. (a) Circle C rolls clockwise
along the line AB until P
reaches the line AB. (b) Circle D rolls anticlockwise
along the line AB until Q
reaches the line AB. 


