What is the length of AB (the minor arc)? Use your calculator and round your final answer to the nearest hundredth.

Question

anonymous · Answer

attachment

jim_thompson5910 · Answer

what is the circumference of the circle?

anonymous · Answer

565.2 (?) If I did it correctly.

jim_thompson5910 · Answer

oh wait, one sec

jim_thompson5910 · Answer

yeah it's too large to be the circumference

anonymous · Answer

62.8 I used 90 instead of 10cm.

jim_thompson5910 · Answer

good you got it now

jim_thompson5910 · Answer

I would use pi instead of 3.14 for now

so the circumference is 62.8318530717959

anonymous · Answer

Yep! That's what I got.

jim_thompson5910 · Answer

now divide that by 4 since 90 degrees is 90/360 = 1/4 of the circle

anonymous · Answer

15.7 (?)

jim_thompson5910 · Answer

you round to 2 places though

anonymous · Answer

That's the answer by calculator gave me.

jim_thompson5910 · Answer

62.8318530717959/4 = ??

anonymous · Answer

15.7079632679 :p

jim_thompson5910 · Answer

so it rounds to 15.71

anonymous · Answer

Yeah, it does. So that's the answer? 
I really should stop using the window's computer calculator. Do you have any recommendations for an online calculator I should use?

jim_thompson5910 · Answer

use google if you don't want to download anything

but I use graphcalc because I'm not able to connect to the internet all the time

jim_thompson5910 · Answer

in this case, you would type in "2*pi*10/4" into google (without quotes) to get https://www.google.com/search?hl=&q=2*pi*10%2F4&sourceid=navclient-ff&rlz=1B3GGLL_enUS420US420&ie=UTF-8

anonymous · Answer

I'll just use google, thank you very much. :)

jim_thompson5910 · Answer

you're welcome