Question

how do you find the surface area?

Answer 1

of what?

Answer 2

Just how do you find the surface area i need an example.

Answer 3

Ok, to find the total surface area of a sphere, you use the formula S = 4πr2

Answer 4

the two at the end is supposed to be ^

Answer 5

Can you type the formula out please.

Answer 6

Surface Area = ( 4 * pi * radius ) squared

Answer 7

Okay that make no scene to me. But do you have math question?.

Answer 8

Ok, lets say the radius is 5, lets fill it in. Surface Area= (4*pi*(5) squared

Answer 9

Now multiply 4*5 to get 20

Answer 10

Okay.

Answer 11

Now multiply 20*pi,
Calculater or 3.14, or 22/7?

Answer 12

That equals 62.8.

Answer 13

Awesome, now square it. Multiply 62.8*62.8 to get the surface area for a sphere

Answer 14

Now that equals 3943.84

Answer 15

But you would put it like 3943.8

Answer 16

Put it however they want you to, if it ends at .84, and they don't ay anything, round it to that.

Answer 17

Can i ask you a personal question

Answer 18

Wait, i meant like leave it at that. But to round, take the 8 and move over a decimal to the four. If its below five then leave the eight the same, above and round the eight up to nine.

Answer 19

yes but that doesnt mean ill answr

Answer 20

Okay

Answer 21

how old are you and what grade

Answer 22

im in 8

Answer 23

but im taking geometry this year

Answer 24

gtg

Answer 25

bye