NSTSE (National Science Talent Search Exam Unified Council) Class 9: Questions 216  219 of 2000
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Question number: 216
» Mathematics » Circles
Question
A regular decagon (10 sides) is inscribed in a circle. The angle that each side of the decagon subtends at the center is
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 217
» Mathematics » Triangles
Question
A, B, C are the three angles of a triangle. If , then are
Choices
Choice (4)  Response  

a. 


b. 


c. 


d.  All of the above 

Question number: 218
» Mathematics » Areas of Parallelograms and Triangles
Question
The ratio of the perimeter of two squares is 5: 4. The ratio of their areas in the same order is ________.
Choices
Choice (4)  Response  

a.  25: 4 

b.  4: 25 

c.  4: 5 

d.  25: 16 

Question number: 219
» Mathematics » Circles
Question
As shown in blow given figure of a circle. If the length of arc ABC is 24 cm then the length of arc ADC is
Choices
Choice (4)  Response  

a.  12 cm 

b.  Cannot be determined from given data 

c.  24 cm 

d.  18 cm 
