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Mathematics 7 Online
OpenStudy (anonymous):

Grace is making party hats for her upcoming birthday party. A single hat has a diameter of 23 centimeters and a slant height of 30 centimeters. What is the lateral area of each party hat? 2,167.70 cm2 3,829.60 cm2 1,083.85 cm2 1,499.33 cm2

OpenStudy (anonymous):

the lateral area of a cone is = \[\Pi*radius*slant.ht.\]

OpenStudy (anonymous):

so \[\Pi*(23/2)*30\]

OpenStudy (anonymous):

1,083.85 cm^2

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