Question

sorry for all the questions! :p please help :)
The two cones are similar. Find the surface area of the larger cone. Round your answer to the nearest hundredth.
A 810.28
B 847.80
C 868.30
D 886.25

Answer 1

the radius of the larger one is 3 times the radius of the smaller one

Answer 2

\[3\times 4.6=13.8\] and so the larger one has radius
\[3\times 3.7=11.1\]

Answer 3

oh wait that is wrong sorry

Answer 4

\[\pi r^2+\pi rl\] is better

Answer 5

so in your case
\[S=\pi\times 11.1^2+\pi\times 11.1\times 13.8\] whatever that is

Answer 6

thanks so much!!!