



 
Hi Alex, It's not clear from the question which is larger, x or 10. I am going to think of the rectangle having length L and width W with L > W so you will have to this twice, once for L =10,W = x and again for L = x and W = 10. Let be the radius of the circle. Find r in terms of L and x. But W = 2r. Solve for x. Penny  


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