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Central Distance

Stage: 3 Short Challenge Level: Challenge Level:1
See all short problems arranged by curriculum topic in the short problems collection

The diagram shows two circles enclosed in a rectangle measuring 9cm by 5 cm.

What is the distance between the centres of the circles?

If you liked this problem, here is an NRICH task which challenges you to use similar mathematical ideas.  

This problem is taken from the UKMT Mathematical Challenges.