10th Class Mathematics Test Unit 10 - Tangent to a Circle

Unit 10 – Tangent to a Circle

Quiz

 

1. 1. What is the definition of a tangent to a circle?
   1.   A line that intersects the circle at two points
   2.   . A line that passes through the center of the circle
   3.   A line that touches the circle at exactly one point
   4.   A line that lies outside the circle
2. 2. The point at which a tangent touches the circle is called the:
   1.   Radius
   2.   Center
   3.   Point of tangency
   4.   Chord
3. 3. How many tangents can be drawn from an external point to a circle?
   1.   One
   2.   Two
   3.   Three
   4.   Infinite
4. 4. A tangent to a circle is always:
   1.   Parallel to the radius
   2.   . Perpendicular to the radius at the point of contact
   3.   Parallel to the chord
   4.   Perpendicular to the diameter
5. 5. If a line is tangent to a circle, then the distance from the center of the circle to the line is equal to:
   1.   Radius of the circle
   2.   Diameter of the circle
   3.   Twice the radius
   4.   Half the radius
6. 6. The radius drawn to the point of tangency is:
   1.   A. Parallel to the tangent
   2.   Perpendicular to the tangent
   3.   Equal to the tangent
   4.   None of the above
7. 7. If two tangents are drawn from an external point to a circle, they are:
   1.   Parallel
   2.   Unequal in length
   3.   Equal in length
   4.   Intersecting
8. 8. What is the angle between two tangents drawn from an external point to a circle?
   1.   45°
   2.   90°
   3.   Less than 90°
   4.   Depends on the circle
9. 9. A line touches a circle at only one point. This line is called:
   1.   A secant
   2.   A chord
   3.   A tangent
   4.   A diameter
10. 10. If the distance of a point from the center of the circle is less than the radius, the point lies:
    1.   Inside the circle
    2.   On the circle
    3.   Outside the circle
    4.   On the tangent