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Mathematics 8 Online
OpenStudy (anonymous):

i want to make a cone shaped hats with a height of 20cm and a radius of 6cm. how much cardboard will each hat need? to the nearest tenth. pls help

OpenStudy (mathstudent55):

You need the lateral area of a cone with r = 6 cm and h = 20 cm.

OpenStudy (mathstudent55):

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