Quest
Circles
Let a circle with centre at C be made to pass through the point P(1,2), touching the straight lines 7x and x + y + 13 = 0 at A and B respectively. If tangents at A and B intersect at Q, then
1) area of quadrilateral ACBQ can be 100 sq. units
2) radius of circle can be Ö 40
3) area of quadrilateral ACBQ can be 200 sq. units
4) radius of circle can be10
Solution