SATHEE: Circle And System Of Circles Question 109

Circle And System Of Circles Question 109

Question: If the radius of the circle $ x^{2}+y^{2} $ $ -18x+12y+k=0 $ be 11, then $ k= $

[MP PET 1987]

Options:

A) 347

B) 4

C) $ -,4 $

D) 49

Show Answer

Answer:

Correct Answer: C

Solution:

$ {{(Radius)}^{2}}=g^{2}+f^{2}-c $ or $ 121=81+36-k $ or $ k=-4 $ .

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Circle And System Of Circles Question 109

Question: If the radius of the circle $ x^{2}+y^{2} $ $ -18x+12y+k=0 $ be 11, then $ k= $

Options:

Answer:

Solution:

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