Question

I have been on this question for over a hour please help
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?

3,829.60 cm2

2,167.70 cm2

1,083.85 cm2

1,499.33 cm2

Answer 1

1,083.85 cm^2
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The lateral area of a cone is pi *r *L where r is the radius but L is the slant height.
LA = pi * 23/2 * 30. (Note: radius = diameter divided by 2)
LA = 345 pi or 1083.85 square cm