In the circle with centre P, seg AB is diameter of length 12 cm and seg PC is a radius. Find the length of radius by applying the correct formula.
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Answer:
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Step-by-step explanation:
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Answered by
1
Step-by-step explanation:
Given length of chord AB = 12 cm.
Distance of chord from center = 8 cm.
OC=8 cm .AC=
2
12
=6 cm
In △OAC
OA
2
=AC
2
+OC
2
OA
2
=(6)
2
+(8)
2
=36+64
[ OA=10 cm].
∴ Diameter of circle is 2(OA) = 20 cm.
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