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Question

A line meets the co-ordinate axes in A & B, A circle is circumscribed about the triangle OAB. If d1 and d2 are the distances of the tangent to the circle at the origin O from the points A and B respectively the diameter of the circle is:



Your Answer
A

Your Answer
B

Correct Answer
C

Your Answer
D


Solution

The correct option is D


AL = d1

BM = d2

The line joining the midpoints of non-parallel sides of a trapezium is parallel, to then parallel sides and half of the sum of the parallel sides.

r=(d1+d2)

2r=d1+d2

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