Mathematics
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OpenStudy (anonymous):
PLEASE PLEAS HELP I WILL MEDAL!!!! AND FAN
how do you find the surface area and latreal of a clylinder?????
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OpenStudy (anonymous):
area = 2 · π · r · (r + h)=surface area
OpenStudy (anonymous):
lateral area = 2*3.14*rh
OpenStudy (anonymous):
A=2πrh+2πr2
OpenStudy (anonymous):
A=2πrh+2πr^2
OpenStudy (anonymous):
I must be doing it wrong because ive tried both ways and i still get it wrong
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OpenStudy (anonymous):
what are the figures?
OpenStudy (anonymous):
@lunasee
OpenStudy (anonymous):
A=2πrh (for lateral area)
OpenStudy (anonymous):
it says use the net to find the latreal area of the clyinder diamter is 12 hieght is 15
OpenStudy (anonymous):
also says give your answer in pi , which i dont understand
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OpenStudy (anonymous):
im using the correct formula but i still get it wrong
OpenStudy (anonymous):
since the diameter is 12 the radius will be 6 since tha radius is half of diameter
OpenStudy (anonymous):
the answer i got for surface area is 791.68
OpenStudy (anonymous):
@lunasee
OpenStudy (anonymous):
thats the same that i got , it still says incorrect
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OpenStudy (anonymous):
probably approximate it
OpenStudy (anonymous):
565.49 for the lateral area
OpenStudy (anonymous):
nope , neither work , ive tried it all it still says its incorrect , maybe because it says it needs to be in pi?
OpenStudy (anonymous):
@kalahkid
OpenStudy (anonymous):
i guessing you should put pi at the end of the answer??
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OpenStudy (anonymous):
I have tried that too!!! This is driving me insane!!
OpenStudy (anonymous):
ohhh
OpenStudy (anonymous):
did you put the units cm or m^2 since its area
OpenStudy (anonymous):
@lunasee
OpenStudy (anonymous):
yes i did
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OpenStudy (anonymous):
Do you have to show working??
OpenStudy (triciaal):
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