Question

Find the surface area of a sphere with radius 7 in.

Answer 1

@Kevin

Answer 2

hmm... can u calculate it by yourself?
I'll give you the formula and the calculator

Answer 3

Yeah, lol.

Answer 4

it's boring to boring to copying from notepad to calculator, then to notepad again, then to OS xD

Answer 5

xD

Answer 6

Thanks, if I get that calculator, I can ask you alot less questions lol

Answer 7

Formula? How should I input it?

Answer 8

4*22/7*7*7

Answer 9

This correct?
((4)(22)7(7))(7)
=616

Answer 10

nah, I am doing something wrong I think.

Answer 11

It's correct :)
doing it from now, and you will not be got banned

Answer 12

xD

Answer 13

lol

Answer 14

So how would I input the problems tho?
I mean without having to ask you lol?

Answer 15

so, you already know the formula?
Then just write the formula in mathpapa

Answer 16

idk the formula lol.

Answer 17

e.g.Find the volume of a sphere with diameter 21 cm.
What formula do I type to get volume using diameter?

Answer 18

here is the formula
pls don't forget the link. If you forget come back here again
http://sainskreatif.blogspot.co.id/2016/06/bangun-ruang.html

Use google translate or ask me if you have something you don't understand

Answer 19

Okay, let me see......

Answer 20

:)

Answer 21

I can't find the sphere formula there :(

Answer 22

it's ball

Answer 23

o_O

Answer 24

Okay lol

Answer 25

You mean football formula?

Answer 26

what? it's translated to football? xD
find this one 4 x π x r2
it's the ball surface area

Answer 27

yeah, that one says football lol.
Okay, got ya.

Answer 28

:)

Answer 29

I may to translate my blog into English, but I'm too lazy

Answer 30

There is no feedback from the reader. I also cannot earn money from my blog. That's why I left my blog

Answer 31

Football formula: Wide ball = 4 x π xr 2 Size hemispherical solid = 3 x π xr 2 Volume balls = 4/3 x π xr 3

That's it?

Answer 32

that's correct

Answer 33

maybe if you want to pay me or what, I will translate my blog into english just for you ;p

Answer 34

I don't get it.
"Wide ball = 4 x π xr 2 Size hemispherical solid = 3 x π xr 2 Volume balls = 4/3 x π xr 3"

How would I input this: Find the volume of a sphere with diameter 21 cm.
Using your "footbal" formula?

Answer 35

use volume ball formula

Answer 36

Yeah, okay.

Answer 37

you know what is r right?
it's radius
and radius is 1/2 of diameter

Answer 38

Oh..Okay.

Answer 39

so will you pay me? or what is your feedback for me?

Answer 40

I don't get this yet.
Is this correct?

Volume balls = 4/3 * π 21 3"?
@Kevin

Answer 41

Is this correct?
(4/3(3.141593))(21)(3)
=263.893783
@Kevin

Answer 42

I always using pi as 22/7, because it always be more detailed than 3.14

Answer 43

Okay, well am I correct?

Answer 44

I mean does this:
(4/3(3.141593))(21)(3)
=263.893783
make any sense?

Answer 45

4*(22/7)*(21/2)^3
find it using calculator

Answer 46

Totally different answers lol:
4(227)(212)3
=14553

Answer 47

yup, that's the answer..
You must train to using math symbol in online calculator

Answer 48

How did you get that?
I don't understand the formula.

Answer 49

to create multiply, use *
to create power, use ^
every fraction, you should use open parenthesis and close parenthesis, so the calculator will not calculate wrong, for an example: a/b write as (a/b)

Answer 50

Oh okay.
Thanks.

Answer 51

yw :)