Circle And System Of Circles Question 189
Question: The area of the curve $ x^{2}+y^{2}=2ax $ is
[MP PET 1996]
Options:
A) $ \pi a^{2} $
B) $ 2\pi a^{2} $
C) $ 4\pi a^{2} $
D) $ \frac{1}{2}\pi a^{2} $
Show Answer
Answer:
Correct Answer: A
Solution:
$ x^{2}+y^{2}-2ax=0 $ Obviously, radius of the circle is a.
Hence the area of triangle is $ \pi a^{2} $ .