Lateral Area Formula of a cone?
Grace is making party hats for her upcoming birthday party. A single hat has a diameter of 15 centimeters and a slant height of 28 centimeters. What is the lateral area of each party hat?

836.45 cm2

659.73 cm2

2,026.33 cm2

1,319.47 cm2

*lateral area confuses me can you please explain?*

Question

Lateral Area Formula of a cone?
Grace is making party hats for her upcoming birthday party. A single hat has a diameter of 15 centimeters and a slant height of 28 centimeters. What is the lateral area of each party hat?

 836.45 cm2

 659.73 cm2

 2,026.33 cm2

 1,319.47 cm2

*lateral area confuses me can you please explain?*

anonymous · Answer

surface area of a cone =pi*r*l

r=radius =7.5cm
l=slant height...=28 cm

3.14*7*28=659...