Calculate the lateral surface areas of cones formed from the pictured circular sectors. The radii of the circular sectors are [[$ 15 $]] cm.

Take a picture of your solution and return it to the submission folder.

a) Answer: The lateral surface area of the cone is cm[[$ ^2 $]].

b) Answer: The lateral surface area of the cone is cm[[$ ^2 $]].

c) Answer: The lateral surface area of the cone is cm[[$ ^2 $]].

Exercise 8.18