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Question


Which one of the following angles can not be constructed using compass and ruler?


Options:
A .   30
B .   15
C .   25
D .   45
Answer: Option C
:
C

We can draw 60 and bisect it to get 30.
Similarly, we can bisect 30 and get 15.
Also, we can draw 90 and bisect it to get 45.
But, 50 cannot be drawn using compass and ruler to get its bisected angle of 25.



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