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By dimensions is the question asking for the box that fits perfectly around the circle?
Convert feet to meters
perimeter, area, volume? well, perimeter eh, since meters. but then circumference is there already
A. diameter: 1.8 m, circumference: 11.6 m B. diameter: 3.7 m, circumference: 11.6 m C. diameter: 4.0 m, circumference: 12.7 m D. diameter: 4.7 m, circumference: 15.0 m these are my options but i dont get to any of them? what do i do?
I gave you a hint. Do you know how to convert feet to meters?
should i say the conversion, hero?
Yes, that would be the 2nd Hint
NotTim, that wasn't exactly what I had in mind
I don't know how many feet are in a meter, but I know that there's around 2.54 cm in an inch, 12 inches in a foot, and 100 cm in a meter. Dimensional analysis: Anything over itself is equal to 1. a/a = 1 2ft/2ft = 1 etc... So, 1in/2.54 cm = 1 = 2.54cm/1in Also, anything multiplied by 1 is equal to itself. 1*a = a 2ft/2ft * 10mi = 10mi etc... Using this, we can strategically multiply the number we're trying to convert, 12ft, in such a way that eliminates the current units and leaves us with the one we desire. 12ft/1 * 1 = 12ft/1 12ft/1 * 12in/1ft = 12ft/1 Feet on top and bottom, cancels out. 12*12in = 12ft/1 144in/1 = 12ft/1 144in/1 * 2.54cm/1in = 12ft/1 Inches cancel out, multiply. 365.76cm/1 = 12ft/1 365.76cm/1 * m/100cm = 12ft/1 Centimeters cancel out, divide. 3.6576m = 12ft Rounds to 3.7m. The circumference of a circle is equal to 2πr = πd (r is radius, d is diameter which is twice the radius). This is just something you memorize. C = π * d = π * 3.7m C = 3.7πm C approx = 11.624m Answer is B. diameter: 3.7 m, circumference: 11.6 m
serrr-fump. copy, paste, and answa!
thank you guys ill let you know if i get it right in a few! :p
NotTim, I wrote all of that myself.
whoaaa.......dedication! congrats, piggie
@bluepig148 , posting the conversion rate would have sufficed.
i got it right thank u guys gtg peace! :)
I value intuition more than memorization. I don't know the conversion rate. If this were a real situation or one similar to it, knowledge of dimensional analysis would have saved me - not a conversion rate once learned and then forgotten.
It looks like you went around in one gigantic circle just to get to a result that was simple to compute.
KIS-Keep is simple, friend
When I was learning about conversions every lesson and example problem was an exercise in dimensional analysis. I don't see why this question would have been asked if it wasn't about that. Also, quit nit picking at everything I say.
I wasn't trying to nit-pick. I was just giving a suggestion
The more information you give, the more likely it is to confuse the poster.
NotTim, I think understanding is simpler than memorization.
Giving simple to follow step by step hints is more effective than posting all of that.
eh, simple is different for every1, eh?