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Two circles touch internally. Their diameters are, respectively, 8 cm and 4 cm. Whatis the distance (in cm) between their centres? |
3 2 4 1 |
2 |
Diameter of big triangle = 8 cm Radius of big triangle = 4 cm Diameter of small triangle = 4 cm Radius of small triangle = 2 cm Distance between their centers = 4 - 2 = 2 cm |
