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Mathematics 29 Online
OpenStudy (anonymous):

Grace is making party hats for her upcoming birthday party. A single hat has a diameter of 21 centimeters and a slant height of 38 centimeters. What is the lateral area of each party hat?

OpenStudy (anonymous):

= π r hs = 3.14 * 10.5 * 38 = 1,254 cm²

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