AP ICET 2019 Shift 2 Paper

Question : 138 of 200

Marks: +1, -0

A tangent is drawn to a circle from a point 13 cm away from its centre. If the length of that tangent is 12 cm. then the radius (in cms) of the circle is

Validate

Solution:

QC ^{2}= PC ^{2}- PQ ^{2}

=169-144=25

QC =5

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