Question

a cone has a circular base with a diameter of 18in the height of a cone is 40in what is the approximate lateral area of a cone use 3.14 for pi and round to the nearest whole number.​

Answer 1

The lateral area of a cone is expressed as:

Lateral surface area of a cone: L = rs = √(r^2 + h^2)

L = п(9)√(9^2 +

L = 1159.248

40^2)

Therefore, the correct answer is the last option. Hope this answers the question. Have a nice day.