(ĂźIf two circles with radii 8 em and 3 cm respectively touch extern – InterviewSolution

1.	(ĂźIf two circles with radii 8 em and 3 cm respectively touch externally,then find the distance between their centres.
Answer» The centres of the circles & the point of contact are collinear.Two circles touching internally at C.A & B are the centres.AC= AB+ BC (Betweenness property)AB is the distance between the centres.AC = 8 units (radius of the larger circle)BC= 3 units ( radius of the smaller circle)AC-BC= AB8–3 = AB5 = AB

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