SOLUTION: A circle with center A and a radius of 5 is tangent to a larger circle with center B and a diameter three times that of the smaller circle. What is the distance from A to B?

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Question 992576: A circle with center A and a radius of 5 is tangent to a larger circle with center B and a diameter three times that of the smaller circle. What is the distance from A to B?
Found 2 solutions by vleith, addingup:
Answer by vleith(2983) About Me  (Show Source):
You can put this solution on YOUR website!
circle A has a radius of 5 and a diameter of 10
Circle B has a diameter 3 times that of circle A. So B's diameter is 3*10 = 30.
That makes B's radius 30/2 = 15.
What is the length from B to A? 15 + 5 = 20



Answer by addingup(3677) About Me  (Show Source):
You can put this solution on YOUR website!
A has a radius of 5, and 5x2= a diameter of 10.
B has a diameter 3 times bigger, so 3x10= a diameter of 30 And 30/2= radius 15.
So, the distance of center A to center B, assuming that the circles are externally tangential, is 20. Look at the drawing I made you.