circle

Related Questions

• Which of the following lines is a tangent to the circle ${{x}^{2}}+{{y}^{2}}=25$ for all values of m

  ---

• If a circle, whose centre is (–1, 1) touches the straight line $x+2y+12=0$ , then the coordinates of the point of contact are

  ---

• Any circle through the point of intersection of the lines $x+\sqrt{3}y=1$ and $\sqrt{3}x-y=2$ if intersects these lines at points P and Q, then the angle subtended by the arc PQ at its centre is

  ---

• The centres of the circles ${{x}^{2}}+{{y}^{2}}=1$ , ${{x}^{2}}+{{y}^{2}}+6x-2y=1$ and ${{x}^{2}}+{{y}^{2}}-12x+4y=1$ are

  ---

• A circle is concentric with the circle ${{x}^{2}}+{{y}^{2}}-6x+12y+15=0$ and has area double of its area. The equation of the circle is

  ---