. Let A be the centre of the circle `x^2+y^2-2x-4y-20=0` Suppose that the tangents at the points B(1,7) and D(4,-2) on the circle meet at the point C. Find the area of the quadrilateral ABCD

Let A be the centre of the circle x^(2)+y^(2)-2x-4y-20=0 . If the tangents at the points B (1, 7) and D(4, -2) on the circle meet at the point C, then the perimeter of the quadrilateral ABCD is

Let A be the centre of the circle x^(2)+y^(2)-2x-4y-20=0 .The tangents at the points B(1,7) and C(4,-2) on the circle meet at the point D .If Delta denotes the area of the quadrilateral ABCD,then (Delta)/(25) is equal to

. Let A be the centre of the circle x^(2)+y^(2)-2x-4y-20=0 suppose that x^(2)+y^(2)-2x-4y-20=0 suppose that the tangents at the points B(1,7) and D(4,-2) on the circle meet at the point C. Find the area of the quadrilateral ABCD

The tangent of the circle x^(2)+y^(2)-2x-4y-20=0 at (1,7) meets the y -axis at the point

Let B the centre of the circle x^(2) + y^(2) - 2x + 4y + 1 = 0 . Let the tangents at two points P and Q on the circle intersect at the point A(3, 1). Then 8.(("area " Delta APQ)/("area " Delta BPQ)) is equal to ________.

At what points on the circle x^2+y^2-2x-4y+1=0 , the tangent is parallel to the x-axis.

To the circle x^(2)+y^(2)+8x-4y+4=0 tangent at the point theta=(pi)/(4) is

Find the points on the circle x^(2)+y^(2)-2x+4y-20=0 which are the farthest and nearest to the point (-5,6)

Find the points on the circle x^(2)+y^(2)-2x+4y-20=0 which are farthest and nearests to point (-5,6).