Question

a particle moves in a circle given by x²+y²=4 then raidus of a circle is​

Answer 1

Answer:

2

Step-by-step explanation:

Equation of a circle is

$x^{2} + {y}^{2} = {r}^{2}$

Where r is the radius of the circle

Hence r^2 = 4

r = 2

Answer 2

Answer:

REFER TO THE ABOVE ATTACHMENT

Step-by-step explanation:

HOPE IT WILL HELP YOU :-)