13 example 10 write the equation of a circle with center 3 5 and containing the point 9 10 use the distance formula to find the radius example 1 write the equation of the given circle 2 equation of a circles 2 example 1 write the equation of a circle with center 2 4 and containing the point 8 12 use the distance formula to find the radius ex 10 4 1 two circles of radii 5 cm and 3 cm intersect find the center of circle x2 y2 ex 11 1 14 equation of a circle with centre 2 2 example 3 write the equation of the line that is tangent to the circle at the example 5 write the equation of the line that is tangent to the given circle at circle radius and two points ex 11 2 1 write the standard form of each equation then graph the equation 6 finding the centre and the radius ex 11 1 12 circle with radius 5 whose centre lies on x axis find center of circle cirscribing a triangle with vertices 2 3 3 4 and 6 8 22 circle point x y is on a circle whose radius is r units and 5 5 2 center h k radius r equation of a circle c h k r y x proof p x y circles equation of circle passing through 2 points and centre lying on a line find the standard equation of the circle with the given radius r and center c then graph the circle write the standard form of the circle with center 2 3 that p 6 example 2 state the equations of the following circles centre 2 3 radius 10 x 2 2 y 3 2 100 centre 0 6 radius 2 3 r 2 2 3 exercise 1 mins finding the center radius form of a circle given the endpoints of the diameter 185 1 12 all 13 16 all slide2 jpg ex 11 2 3 last updated at dec 8 2016 by teachoo