http://www.boardofstudies.nsw.edu.au...ths-ex1-07.pdf
question 4c with explanations
http://www.boardofstudies.nsw.edu.au...ths-ex1-07.pdf
question 4c with explanations
Hello andy69
The question is shown in the diagram I have attached.
Proof
(i) (angles on a straight line)
(given)
But (angle sum of )
(angles in same segment)(ii) (isosceles , from part (i))
(given)
lies on a circle with diameter BC (angle in semicircle)
But (proven)
is the centre of the circle through and
Grandad