[" Two circles with radii "r_(1)" and "r_(2),r_(1)>r_(2)>=2,],[" touch each other externally.If "'alpha'" be the "],[" angle between direct common tangents,"],[" then "]

Two circles of radii r_(1) and r_(2), r_(1) gt r_(2) ge2 touch each other externally. If theta be the angle between the direct common tangents, then,

Two circles of radii r_(1) and r_(2), r_(1) gt r_(2) ge2 touch each other externally. If theta be the angle between the direct common tangents, then,

Two circles with radii r_1 and r_2, r_1 gt r_2 ge 2, touch other externally. If 'alpha' be the angle between direct common tangents ,then

Two circles with radii r_(1) and r_(2), r_(1)gtr_(2)ge2 touch others externelly. If alpha is the angle between direct common tangents then "sin"(alpha)/2=(r_(1)-r_(2))/(r_(1)+r_(2))

Two circles of radii a and b touch each other externally and theta be the angle between their direct common tangents (a>b>=2) then

Two circles with radii a and b touch each other externally such that theta is the angle between their direct common tangent (a>b>=2), then

Two circles with radii a and b touch each other externally such that theta is the angle between the direct common tangents (agtbge2) , then

Two circles with radii a and b touch each other externally such that theta is the angle between the direct common tangents, (a > bgeq2) . Then prove that theta=2sin^(-1)((a-b)/(a+b)) .

Two circles with radii a and b touch each other externally such that theta is the angle between the direct common tangents, (a > bgeq2) . Then prove that theta=2sin^(-1)((a-b)/(a+b)) .

Two circles with radii a and b touch each other externally such that theta is the angle between the direct common tangents, (a > bgeq2) . Then prove that theta=2sin^(-1)((a-b)/(a+b)) .