human
Angle of intersection of two circles having their centers D distance apart | Function to find the cosine of the angle of the intersection of two circles with radius R1 and R2.
Return the cosine of the angle.
Driver Code"
Solution in Python:

Write me a code to angle of intersection of two circles having their centers D distance apart and the other steps required?
assistant
#Here is code to angle of intersection of two circles having their centers D distance apart and the other steps required.
 def angle ( R1 , R2 , D ) :
	ans = ( ( R1 * R1 + R2 * R2 - D * D ) / ( 2 * R1 * R2 ) )
	return ans
if __name__ == ' _ _ main _ _ ' :
	R1 = 3
	R2 = 4
	D = 5
	print ( angle ( R1 , R2 , D ) )