IMO Level 1 Mathematics Olympiad (SOF) Class 10: Questions 751  752 of 968
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Question number: 751
Question
The perimeter of a sector of a circle of radius is The area of the sector is________.
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 752
» Triangle, Circle & Constructions
Question
Given below are the steps of construction of a pair of tangents to a circle of radius which are inclined to each other at an angle of . Find which of the following step is wrong.
Step I: Take a point O on the paper and draw a circle of radius
Step II: Produce to such that
Step III: Taking as the center draw a circle of radius suppose it cuts the circle drawn in step I at P and Q.
Step IV: Join and to get desired tangents.
Choices
Choice (4)  Response  

a.  Only 2  
b.  Only 3  
c.  Only 4  
d.  Only 1 