. A right triangle ABC right angled A drawn to circumscribe a circle of radius 5 cm with centre O. IAC = 17
and AB = 18 cm, then OC =
(a) 10 cm
(b) 9 cm
(c) 12 cm
(d) 13 cm
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Step-by-step explanation:
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The value of
is 
Step-by-step explanation:
Given,
is the right triangle and
is right angle, Circumscribe a circle of radius
with center
and
In figure,
and
become a square.
So, (∵
)
⇒
⇒
(∵
and corresponding angle are equal)
From also right-angle triangle,
⇒
⇒
∴
So, The value of is
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