Question

Medal and fan if you help me! Find the surface area of the cone. Use 3.14 for pi

Answer 1

first, what is the formula for the surface area of a cone?

Answer 2

pr2 + prs?

Answer 3

correct
from the given picture you can identify the radius and its 4 right?
so you have your r in the formula
next is s, s is the slant height
which is 7 in the picture
substitute those values:

surface area=pir^2+pirs
SA=pi(4)^2+pi(4)(7)
SA=44pi in^2

Answer 4

forgot use 3.14 as pi sorry
SA=3.14(4)^2+3.14(4)(7)
SA=138.16 in^2

Answer 5

Thank you!

Answer 6

The answer is 151