Multiple choice question V — task. Mathematics State Board, Class 9.

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1.

$AD$ is a diameter of a circle and

$AB$ is a chord. If

$AD = 30 \ cm$ and

$AB = 24 \ cm$ , then the distance of

$AB$ from the centre of the circle is:

$9 \ cm$
$8 \ cm$
$10 \ cm$
$6 \ cm$

2.

In the given figure, if

$OP = 17 \ cm$ ,

$PQ = 30 \ cm$ and

$OS$ is perpendicular to

$PQ$ , then

$RS$ is:

$7 \ cm$
$10 \ cm$
$6 \ cm$
$9 \ cm$

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