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 is

A. (3, 3)

B. (4, 6)

C. (3, –3)

D. (4, –6)

Answer :

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 (x_{1}, y_{1}) and (x_{2}, y_{2}) is

⇒x = 3 and y = 3

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