10. The circle C, with centre A, passes through the point P with coordinates (–9, 8) and the point Q with coordinates (15, –10). Given that PQ is a diameter of the circle C,
(a) find the coordinates of A, )
(b) find an equation for C
. A point R also lies on the circle C. Given that the length of the chord PR is 20 units,
(c) find the length of the shortest distance from A to the chord PR. Give your answer as a surd in its simplest form. (2)
(d) Find the size of the angle ARQ, giving your answer to the nearest 0.1 of a degree
NEED HELP IN LAST PART I AM USING COSINE RULE AND GETTING ANSWER 48.SOMETHING BUT ACTUAL ANSWER IS 41.8....
I AM TRYING TO THIS PART FOR MORE THAN 30 MINS BUT STILL NO GET IT