| 1 |
A line perpendicular to a radial chord of a circle at the end-point (which lies on the circle) is a: |
- A. Secant
- B. Diameter
- C. Chord
- D. Tangent
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| 2 |
The focus of the parabola x<sup>2</sup> = 4ay: |
- A. (0, a)
- B. (-a , 0)
- C. (0, -a)
- D. (a, 0)
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| 3 |
If r is the radius of any circle and C its center, then any point P(x<sub>1</sub>, y<sub>1</sub>) lies outside the circle only if: |
- A. |CP| < r
- B. |CP| = r
- C. |CP| > r
- D. None of these
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| 4 |
One of the angles of a triangle inscribed in a circle is of 40°. If one of its' the diameter, the other angles have the measures: |
- A. 30°, 110°
- B. 40°, 100°
- C. 50°, 90°
- D. 20°, 120°
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| 5 |
The distance between the center of a circle and any point of the circle is called: |
- A. Tangents
- B. Secant
- C. Diameter
- D. Radius
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| 6 |
A circle is of radius 5 cm, the distance of a chord 8 cm long from its center is: |
- A. 4 cm
- B. 3cm
- C. 2.5cm
- D. 3.4cm
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| 7 |
Two imaginary tangents can be drawn to a circle from any point P(x<sub>1</sub>, y<sub>1</sub>) _______ the circle: |
- A. Inside
- B. On
- C. Outside
- D. None of these
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| 8 |
If equation of circle is (x - h)<sup>2</sup> + (y - k)<sup>2</sup> = r<sup>2</sup>, then center of a circle: |
- A. (-h, -k)
- B. (h, k)
- C. (-h, k)
- D. (h, -k)
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| 9 |
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| 10 |
The fixed point of the conic is called: |
- A. Directrix
- B. Vertex
- C. Focus
- D. None of these
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