Question

What is the approximate surface area of the cone shown here?

Answer 1

i have attached the file

Answer 2

hint: formula for surface area of a cone is \[SA = \pi r^2 + \frac 23 \pi r h\]

Answer 3

hmm nevermind..slant height is given

Answer 4

so what is the formula

Answer 5

\[SA = \pi r s + \pi r^2\]

Answer 6

r is raidus
s is slant height

Answer 7

pi is constant of course

Answer 8

oh, surface area lol

Answer 9

so the answer is 298.3??

Answer 10

yeah i got it right

Answer 11

hmm i got 298.5

Answer 12

Thanks for the help!!!

Answer 13

it's just the value of pi i guess

Answer 14

yep you're right. i think you used 3.14 for pi

Answer 15

yeah i did

Answer 16

yep that's right

Answer 17

thanks again!

Answer 18

byee

Answer 19

you're welcome :)