A paper cone has a base diameter of 8cm and a height of 3cm. Calculate the curved surface area of the cone in terms of p¹ (pie)

Answer 1

the slant height (s) is ... s^2 = √[(8/2)^2 + 3^2]
... s is the radius of the circle the cone was made from

the area of the source circle is ... π s^2

the circumference of the source circle is ... 2 π s

the circumference of the cone base is ... 8 π

the curved surface area of the cone is ... [(8 π) / (2 π s)] * π s^2

Answer 2

and that's pi, not pie