10th Class Mathematics Chapter 9 TestUNIT 9: TANGENT AND ANGLES OF A CIRCLE

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

1. Any two angles in the same segment of the circle are:

   1. Supplementary

   2. Complementary

   3. Equal

   4. Zero

2. An angle in a segment greater than a semicircle is ...... angle:

   1. An acute

   2. Right

   3. An obtuse

   4. Straight

3. If r=6cm and  radians, then arc length is:

   1. 12 cm

   2. 8 cm

   3. 6 cm

   4. 3 cm

4. ...... tangents can be drawn to a circle from a point outside the circle:

   1. One

   2. Two

   3. Three

   4. Many

5. Which is the formula of area of a sector of a circle:

   1. 

   2. 

   3. 

   4. 

6. In circle, radius and tangent are:

   1. Parallel

   2. Equal

   3. Perpendicular

   4. Zero

7. The radii of two circles are 15cm, 9cm. what is the distance between their centres they touch internally:

   1. 24cm

   2. 35cm

   3. 6cm

   4. 135cm

8. Find the radius of a sector with an area of 50 units and Q is 4 radians:

   1. 5 units

   2. 50 units

   3. 25 units

   4. 50 units

9. If  is the radial sagmen in a circle,  is a tangent, them:

   1. 

   2. 

   3. 

   4. 

10. A circular running track subtends angle of  at the centre. What angle does it subtend at a point on the boundary:

    1. 30

    2. 90

    3. 

    4.