CHAPTER-3, CIRCLES

1. The length of tangents drawn from an external point to the circle

 
 
 
 

2. The tangents drawn at thp’extremities of the diameter of a circle are

 
 
 
 

3. The two tangents from an external point P to a circle with centre 0 are PA and PB. ∠AB = 70°, then the ∠AOB is

 
 
 
 

4. If radii of two concentric circles are 5 cm and 3 cm respectively, then the length of the chord of the larger circle which touches the smaller circle is

 
 
 
 

5. The distance between two parallel tangents of a circle of radius 4 cm is

 
 
 
 

6. Number of tangents drawn at a point of the circle is/are

 
 
 
 

7. From a point P, length of the tangent to a circle of radius 8 cm is 15 cm. The distance of the point P from the centre of circle is

 
 
 
 

8. From a point P which is at a distance of 13 cm from the centre 0 of a circle of radius 5 cm, the pair of tangents PQ and PR to the circle are drawn. Then the area of the quadrilateral PQ OR is

 
 
 
 

9. The length of a tangent drawn from a point at a distance of 10 cm of circle is 8 cm. The radius of the circle is

 
 
 
 

10. Tangents from an external point to a circle are

 
 
 
 

Question 1 of 10