my answers

a1:(10,12)

a2: r=7

b:25

c is what i struggle with, so far i worked out the equation for line MN and found the perpendicular bisector line.

i have sketched my progress so far on desmos https://www.desmos.com/calculator/i0vbehvizi

i think i should be able to find point P if i find the intersection between new line and circle by subbing in my equation into the circle but i got x=98 as my answer

please help thanks.

YEEEEEET Jan 4, 2019