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Mathematics 7 Online
zarkam21 (zarkam21):

Help please, I think I have the right answer, just a little confused

zarkam21 (zarkam21):

OpenStudy (baru):

what do you think the answer is?

OpenStudy (mattfort3212):

22.8906 thats what i got

zarkam21 (zarkam21):

45.78

OpenStudy (mattfort3212):

well then

zarkam21 (zarkam21):

I don't know if its 45.78 or 11.45

OpenStudy (baru):

woops

OpenStudy (baru):

mattforts answer is correct, what formulas did you use to get 45.78 and 11.45 ?

zarkam21 (zarkam21):

Well this is the formula I used Area= 180/360 * 3.14 * \[{5.4}^2\]

OpenStudy (baru):

yes, the formula is correct, except that 5.4 is the diameter, and the formula requires radius .. can you make those changes?

zarkam21 (zarkam21):

2.7

zarkam21 (zarkam21):

Because you would divide it by 2

OpenStudy (baru):

yes :) so.. woops again, i have miscalculated... what answer do you get with 2.7 ?

zarkam21 (zarkam21):

11.45

OpenStudy (baru):

yep :P looks good

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