Circle And System Of Circles Question 220
Question: Equation of a circle whose centre is origin and radius is equal to the distance between the lines $ x=1 $ and $ x=-1 $ is
[MP PET 1984]
Options:
A) $ x^{2}+y^{2}=1 $
B) $ x^{2}+y^{2}=\sqrt{2} $
C) $ x^{2}+y^{2}=4 $
D) $ x^{2}+y^{2}=-4 $
Show Answer
Answer:
Correct Answer: C
Solution:
Radius = 2, C (0, 0) Equation of circle can be found from this.
BETA
