To draw a pair of tange nts to a circle  which are  incline d to e ach othe r at an angle  of 45° it is re quire d to draw tange nts at the  e nd point of those  two radii of the  circle , the  angle  be twe e n which is :

1) 105° 
2) 135°
3) 145°
4) 70°

 A point O is at a distance  of 10 cm from the  centre  of a circle  of radius 6 cm. How many tangents can be  drawn from point O to the  circle ?

1) 1 
2) 3
3) infinite
4) 2

From the  given figure , find out what is AC : AB.

1) 2 : 3 
2) 5 : 3
3) 3 : 2
4) 3 : 5

  PQ is a tangent to a circle  with centre  O at the point P. If triangle  OPQ is an isosceles triangle , then angle  OQP is equal to
 

1) 30° 
2) 90°
3) 45°
4) 60°

If the length of a median of an equilateral triangle is x cm, then its area is 

1) x² 
2) Ö3x² / 2
3) x² / Ö3
4) x² / 2