Question

Two circles of radii 7.2 and 5.3cm respectively touch each other externally. What is the distance between their centres.
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Answer 1

Answer:

12.5cm

Step-by-step explanation:

R=7.5cm

r=5.3cm

Distance between their centres=R+r

                                                    =7.2+5.3

                                                    =12.5cm