*ANSWER PLS TY* Find the surface area of this cone.

A. 36Πm^2

Step-by-step explanation:

Look at the image on how to solve the surface area of a cone.

To find the height (h), you need to create a right angled triangle,

4^2+x^2=5^2

16+x^2=25

x^2=9

x=3

You put this into the equation:

r=4

h=3

And then you get the answer of 36Πm^2.

Hope this helps! If you have any more questions, please feel free to ask.

14.3

step-by-step explanation:

add all the numbers together.

9 + 12 + 15 + 16 + 17 + 17 = 86

now, divide 86 by how many numbers we have: 6.

86 / 6 = 14.3