one man's waist has a diameter of 10 inches. a second mans waist has a diameter of 11 inches. how much longer is the second mans belt than the first man's belt? (use pi= 3.14)

Question

anonymous · Answer

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Here we go again ;)

anonymous · Answer

What's the formula for the circumference of a circle? And what are the radii?

anonymous · Answer

lol hello again. ok C=$$2piR$$ and the radii are 5 and 5.5 right? @HerbvanH

anonymous · Answer

That's right, now combine the 2 and get your answer :)

anonymous · Answer

65.94?

anonymous · Answer

11 inch waist -> 2*pi*5.5 -> 11pi
10 inch waist -> 2*pi*5    -> 10pi

diff is pi?

anonymous · Answer

no matter how i do it im still getting 65.94 :/

anonymous · Answer

65.94 when you do what exactly?

anonymous · Answer

well 11+10*3.14= 65.94
(11*3.14)+(10*3.14)= 65.94

anonymous · Answer

11+10*3.14? why the +?

anonymous · Answer

C = 2*pi*r
    = 2 *3.14*5.5 =34.54

anonymous · Answer

but thats just 11. what about 10? i thought i was supposed to combine them

anonymous · Answer

The question was what the difference in belt length was, right?

So in my previous post i calculated the length of both and concluded the diff was pi

anonymous · Answer

i gtg now, stuff to do offline
readback and find te solution

anonymous · Answer

11 inch waist -> 2*pi*5.5 -> 11pi
10 inch waist -> 2*pi*5    -> 10pi

diff is pi?

anonymous · Answer

ooooooh right lol i feel dumb. i got it now thanks!