math
posted by david .
Two circles touch each other. One of the circles has a diameter of 26 cm and the other
circle has a diameter of 12 cm.
Write down
(a) the least distance between the centres of the two circles,
....................................................... cm
(b) the greatest distance between the centres of the two circles

math 
Steve
draw the two circles, and a line through their centers.
Label the radii, and it should be clear what the two distances are.
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