Time Left:
600
sec
3. A circle is the set of …… in a plane that are equidistant from a fixed point in the plane.
A. Points
B. Lines
C. Cones
D. Circles
5. The centre and radius of the circle x2 + y2 + 4x – 6y = 5 is:
A. (2, – 3), 2√2
B. (– 2, 3), 3√2
C. (– 2, 3), 2√2
D. (2, – 3), 3√2
7. The equation of circle of radius 5 units touches the coordinates axes in the second quadrant is:
A. x2 + y2 + 10x – 10y + 25 = 0
B. x2 + y2 – 10x – 10y + 25 = 0
C. x2 + y2 + 10x + 10y + 25 = 0
D. x2 + y2 – 10x – 10y + 25 = 0
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