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An arched entrances to a stadium is made by combining a square and a semicircle. What is the area of the opening?
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An arched entrances to a stadium is made by combining a square and a semicircle. What is the area of the opening?

User Paul Omta
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Answer: 100+25pi

The area of square part of arch is 10*10=100 the diameter of the circle is 10 therefor radius is 5 and area is \[\pi*r^2=\pi*25\] therefore total area is 100+25pi
User Flashspys
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