(Q37)Find the radius of the circle whose centre is(3,2) and passes through(-5,6).

..A (3,2)B (-5,6)

Given a cicrle with center A(3,2)

Passing through B(-5,6)

radius=AB

[Distance of a point from the center of the circle]

Distance formula=√((x2 - x1)2 + (y2 - y1)2)

Radius r=√((--)2 + (-)2)

=√

√×5

√5 units