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Find d in terms of r1 and r2.
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Complete question:
Two touching circles have radii r1 and r2. The horizontal distance between their centres is d. Find a rule for d in terms of r1 and r2.
The problem is solved by using Pythagoras theorem.
Two touching circles have radii r1 and r2. The horizontal distance between their centres is d. Find a rule for d in terms of r1 and r2.
The problem is solved by using Pythagoras theorem.