Circle Basics
Try the first 5 questions
- 1.
The locus of points from which tangents to x^2+y^2=16 are perpendicular is:
- 2.
The centre and radius of x^2 + y^2 - 4x + 6y - 12 = 0 are:
- 3.
The equation of a circle with centre (0, 0) and radius 7 is:
- 4.
The circle x^2 + y^2 + 8x - 10y + 5 = 0 has centre:
- 5.
The length of the tangent from (5, 0) to x^2 + y^2 = 9 is:
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