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MATH / The circles shown continue infinitely and have diameters 16 inches, 8 inches, 4…

Problem

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problem

The circles shown continue infinitely and have diameters        16 inches, 8 inches, 4 inches, and so on. The diameter            of each circle is half the diameter of the previous            circle. What is the number of square inches in the         sum of the areas of all circles? Express your answer to the nearest whole number.

[asy]
size(200); import geometry; import olympiad; import graph;
real radius = 64.0;
real center = 0.0;
for(int i = 0; i < 20; ++i){

radius = radius / 2.0;

center = center + radius;

draw(Circle((center,0.0),radius));

center += radius;
}
[/asy]

level

Level 5

type

Algebra

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