im soo lost

[osman123]

is dis right? if the diameter was 200cm squared will the formula be d x pi = area or not dunno :{ help ??

[roslyn251254]

diameter cant be 200cm squared - its a length , so is it 200cm?

[osman123]

my bad its 200cm squared sorrie

[kayakamina]

People have been very patient with all your questions but you are monopolising the site to an unacceptable extent.

You can continue to ask questions on a single posting and not start a new one each time. Your posts have taken up what amounts to a whole page to the detriment of others and their questions.

Please use your existing post to continue your discussions.

Thank you.

[osman123]

the area is 200 cm squared

[roslyn251254]

Give the complete question again - sorry dont understand.

[osman123]

it says find the diameter of a circle when the area is 200cm squared

[osman123]

is dat okay

[roslyn251254]

Area = pi x r x r
so 200 = 3.142 x r x r
200 divided by 3.142 = r x r
63.65 = r x r
then you need the square root of 63.65 for the radius
this is 7.98
now double this to get the diameter!

[TCL-MUMPING]

kayakamina in what way is osman unacceptable?

If the area of a circle is pi x r x so A = pi x r x r

then the radius is the square root of the area divided by pi.

so r = square root of (A/pi) or

square root of 200/3.141592

or about 7.97cm

[osman123]

thank yoyu sooo much like i am very great ful for you trying to help me but maybe circles and radiouses i will never get how to do circles and cicumfrances

[Elspeth]

Is this a joke?

[poortony]

I think someone is messing around

[smouse]

I'm sure it cant be a quiz so would love to know what they are for