AMC 10 Step by Step
2019 AMC 10AProblem 16P16-20~4 minPrint

The figure below shows 1313 circles of radius 11 within a larger circle. All the intersections occur at points of tangency. What is the area of the region, shaded in the figure, inside the larger circle but outside all the circles of radius 1?1 ?

figure

Log in to save your progress.

Similar problems

Problem © Mathematical Association of America (MAA), American Mathematics Competitions. Reproduced for non-commercial educational use. Solution and commentary are original to this site.