Answer:
<h2> Total -CSA= 1068.28</h2>
Step-by-step explanation:
This problem is on the mensuration of solids, a cylinder and a cone combined (a frustum)
We are required to solve for the total curve surface areas both solids
hence the curve surface area (henceforth CSA) of a cylinder is given as
Given data
diameter d= 20
radius = d/2= 20/2= 10
height of cylinder h= 9
slant height of cone l= 16
substituting our data into the expression we have