Two circles of diameters 8cm and 6cm touch internally find distance between their centres

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If two circles with diameters 8 cm and 6 cm respectively touch externally, find the distance between their centers.

AB = 4cm and BC=3cm

If two circles touch externally, then the distance between their centers is the sum of their radii.

∴ distance (AC) = 4+3 = 7cm.

∴The distance between the centers= 7cm

Concept: Touching Circles

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