Solve this that the ZPQR.
12. Two equal PQ RS Of a Circle at A. is
to O. the the circle. that OA bisects ZPAS.
13. A circle its centre at O. KL and MN two chords of
the circle which, prcnSuced, meet at P outside the circle.
prove that (a) I'K=PM (b) Pl. = PA'.
ABC is an equilateral triangle, A Circle drawn with centre A
so that it cuts AB and AC at M and N respectively. Prove that
