17. Find the radius of Circle with centre ( 3, 2) and passing through (4, -1).
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17. Find the radius of Circle with centre ( 3, 2) and passing through (4, -1).
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Answer:
given centre of the circle ( 3, 2)
the circle passes throgh (4, -1)
so (4, -1) is a point on circle.
and the point connecting (3,2) and (4, -1) is the radius of the circle
distance{(3,2) and (4,-1)} = √(4-3)²+(2-(-1))²
= √1²+3²
= √10
hence radius of the circle is √10 units
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