Question

Find the lateral area of a cone with a radius of 7 ft. and a slant height of 13 ft. Use 3.14 for Pi and round to the nearest tenth.

A. 439.6 ft^2
B. 324.5 ft^2
C. 571.5 ft^2
D. 285.7 ft^2

Answer 1

Hello, Ken:
What have you done so far?
Do you know the formula for the lateral area of a cone?
If so, please type it here; if not, please consider doing an Internet search for "lateral area of a cone."

Answer 2

@DollyAcquah and @Nurali can you help me

Answer 3

Ken: Your asking for others for help at this point indicates you have little or no willingness to do the necessary work on your own.

Asking for answers without an investment of your own time and effort is not permitted on OpenStudy; please review the Code of Conduct.

And please look up "lateral area of a cone."

Answer 4

the formula for the lateral area of a cone is \[\Pi*radius*slanted height(l) \]

Answer 5

so 3.14 * 7 *13 ?

Answer 6

so then the next step is to substitute all the given info into the formula :)

Answer 7

and what does the answer come to? \[285.7 ft^2 \]

Answer 8

I hoped that helped :)

Answer 9

the answer is D

Answer 10

thank you, that is the same answer i got :)

Answer 11

good job, and thanks for the medal :)

Answer 12

One more thing, what is the formula for finding the Surface Area

Answer 13

No Problem :)

Answer 14

the surface area for a cone is \[SA = πr2 + πrl \]

Answer 15

i meant \[r^2\]

Answer 16

so how do you do this one: Base = 24 cm and Height = 16 cm.

Answer 17

@DollyAcquah: It is against the Code of Conduct to provide any other users with "answers" as you have been doing. Please stop, NOW.

Answer 18

@mathmale, can you help me plug in these numbers im stuck?

Answer 19

Post a new question. I will continue to ask you to make the effort to look up what you need to know, instead of just trolling for answers. You chose to ignore my first response (at the beginning of this discussion).

Answer 20

Ok, I made a new one , can you help me?