Q. 11 C4.8( 6 Votes )

# The co-ordinates of end point s of a diameter of a circle are (7, 9) and (–1, –3). The co-ordinates of centre of circle isA. (3, 3)B. (4, 6)C. (3, –3)D. (4, –6)

Since, centre of circle will be the mid-point of diameter.

And, we know mid-point formula, i.e. the coordinates of mid-point of line joining (x1, y1) and (x2, y2) is

x = 3 and y = 3

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