Circle Theorem Questions Remember that in GCSE papers, 'starred' question numbers means there's marks associated with quality of written communication. *22. [Nov 2013 NonCalc] and are points on the circumference of a circle, centre A, B, C D O. Angle = AOC y. Find the size of angle in terms of Give a reason for each stage of your working. ABC y. 19. [March 2013 NonCalc] and are points on the circumference of a circle, centre A, B D O. is a diameter of the circle. and are tangents to the circle. BOD BC AC Angle = 34°. Work out the size of angle OCB DOA. *16. [June 2013 Calc] S and T are points on the circumference of a circle, centre O. PT is a tangent to the circle. SOP is a straight line. Angle OPT = 32°. Work out the size of the angle marked x. Give reasons for your answer. [March 2012 NonCalc] 19. and are points on a circle, centre Angle = 130°. A, B, C D O. BC = CD. BCD
Circle Theorem Questions Remember that in GCSE papers, 'starred' question numbers means there's marks associated with quality of written communication. [Nov 2013 NonCalc] *22. A, B, C and D are points on the circumference of a circle, centre O. Angle AOC = y. Find the size of angle ABC in terms of y. Give a reason for each stage of your working. [March 2013 NonCalc] 19. A, B and D are points on the circumference of a circle, centre O. BOD is a diameter of the circle. BC and AC are tangents to the circle. Angle OCB = 34°. Work out the size of angle DOA. [June 2013 Calc] *16. S and T are points on the circumference of a circle, centre O. PT is a tangent to the circle. SOP is a straight line. Angle OPT = 32°. Work out the size of the angle marked x. Give reasons for your answer. [March 2012 NonCalc] 19. A, B, C and D are points on a circle, centre O. BC = CD. Angle BCD = 130°.