IMO Level 1 Mathematics Olympiad (SOF) Class 9: Questions 311  315 of 929
Access detailed explanations (illustrated with images and videos) to 929 questions. Access all new questions we will add tracking exampattern and syllabus changes. Subscription can be renewed yearly absolutely FREE! View Sample Explanation or View Features.
Rs. 450.00 or
How to register?
Question number: 311
Question
If the altitude of an equilateral triangle is , its area is ________
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 312
Question
In the given figure, and QS, RS are the bisectors of and, then ________
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 313
Question
A bus stop is barricaded from the remaining part of the road, by using 75 hollow cones made of recycled cardboard. Each cone has a base diameter of 60 cm and height 1 m. If the outer side of each of the cones is to be painted and the cost of painting is Rs. 17 per m^{2}, what will be the cost of painting all these cones? (Use and take)
Choices
Choice (4)  Response  

a.  Rs. 1645 

b.  Rs. 1742 

c.  Rs. 1586 

d.  Rs. 1224 

Question number: 314
Question
The volume of the largest circular cone that can be cut of a cube whose edge is 8 cm is ________
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 315
Question
A circular park of 80 metre diameter has a circular path just inside the boundary of width 8 metre. The area of path is ________
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 

