Q. 165.0( 1 Vote )

# Find the radius of the circle whose center is (3, 2) and passes through (−5, 6).

Answer :

Formula used:

Let the point be A (–5, 6) and O (3, 2)

Distance of OA

⇒ OA = √ ((–5 – 3)^{2} + (6 – 2)^{2})

⇒ OA = √ ((–8)^{2} + (4)^{2})

⇒ OA = √ (64 + 16)

⇒ OA = √ 80

⇒ OA = 4√5

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