SOLUTION: 4. What is the area of an inscribed square who's radius is 5 ft?

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Question 203377: 4. What is the area of an inscribed square who's radius is 5 ft?
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
radius of 5 will make the hypotenuse of the right triangle 10
right triangle has two 45 degree angles
cos45*10=7.07
7.07*7.07=49.99999 sq ft. for the square
round off to 50 sq ft.