If 2 circles with diameters 10cm & 5cm touch each other externally, then the distance between the centres
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Answer:
O is the center of circle which diameter is 10cm
- d=10cm
- so r=d/2
- r= 10/2
- r1=5cm
P is the center of circle which diameter is 5cm
- d=5cm
- so r=d/2
- r=5/2
- r2=2.5cm
therefore
distance between the centres = (r1+ r2)
= ( 5+2.5) cm
= 7.5cm
distance between the centres is 7.5cm
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