10th Class Mathematics Chapter 10 Test10. Tangents and Angles of a Circle

Q1. Multiple choice questions (Attempt all · 10 × 1 = 10)

1. Angle subtended by an arc at centre of circle is called ………… angle.
   1. reflex
   2. inscribed
   3. straight
   4. central
2. Given that radius of a circle is 4 cm. The distance between two tangents drawn at the outer ends of diameter is:
   1. 2 cm
   2. 4 cm
   3. 6 cm
   4. 8 cm
3. If two tangents are drawn on both ends of diameter of a circle, they are:
   1. perpendicular
   2. parallel
   3. intersecting
   4. none
4. Central angle of major arc of a circle is:
   1. less than 90°
   2. less than 180°
   3. greater than 180°
   4. greater than 90°
5. If ABCD is a cyclic quadrilateral and ∠A = 60°, then ∠C = ………
   1. 180°
   2. 120°
   3. 150°
   4. 60°
6. Central angle of minor arc of a circle is:
   1. less than 360°
   2. less than 180°
   3. greater than 360°
   4. greater than 180°
7. A tangent line is ………… to radial segment.
   1. parallel
   2. equal
   3. perpendicular
   4. similar
8. An exterior angle of a cyclic quadrilateral is ……… the opposite interior angle.
   1. greater than
   2. less than
   3. equal to
   4. supplement of
9. If two circles of radii 1.4 cm and 2.5 cm touch internally, the distance between their centres is equal to:
   1. 1.4 cm
   2. 2.5 cm
   3. 1.1 cm
   4. 3.9 cm
10. Inscribed angle of a quadrant of a circle is:
    1. 45°
    2. 90°
    3. 145°
    4. 130°