Question

John bought a conical hat on a recent trip to central Vietnam. The basic frame of the hat is 16 hoops of bamboo that gradually diminish in size. The hat is covered in palm leaves. If the hat has a diameter of 50 centimeters and a slant height of 32 centimeters, what is the lateral area of the conical hat?

Answer 1

You want the lateral surface area of a cone
= π r s, where r is the radius, and s is the "slant" height

= π(25)(32)
= cm^2

Answer 2

2513.27 cm^2