(A) Let \( A B C D \) be a quadrilateral with area 18 , with side \...

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(A) Let \( A B C D \) be a quadrilateral with area 18 , with side \( A B \) parallel to the side \( C D \) and \( A B=2 C D \). Let \( A D \) be perpendicular to \( A B \) and \( C D \). If a circle is drawn inside the
\( \mathrm{P} \) quadrilateral \( A B C D \) touching all the sides, then its radius is:

W
(a) 3
(b) 2
(c) \( 3 / 2 \)
(d) 1
(B) Tangents are drawn from the point \( (17,7) \) to the circle \( x^{2}+y^{2}=169 \).
Statement-1: The tangents are mutually perpendicular.
because
Statement-2: The locus of the points from which mutually perpendicular tangents can be drawn to the given circle is \( x^{2}+y^{2}=338 \).
[IIT-JEE 2007]
(a) Statement-1 is true, statement-2 is true; statement-2 is a correct explanation for statement-1.
(b) Statement-1 is true, statement-2 is true; statement-2 is NOT a correct explanation for statement-1.
(c) Statement-1 is true, statement-2 is false.
(d) Statement-1 is false, statement-2 is true.
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