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4. My grandmother’s dirty kitchen is semicircular in shape with a radius of 3.5 meters. What is the area?
5. A circular basement has a radius of 8 meters. If it will cost Php 650 per square meter to pave the basement with bricks, what will the total cost be?
6. Diana wants to refinish a circular table that is 3.5 meters in diameter. If the refinishing costs is Php 200 per square meter, how much will she spend?