Geometry
17 Online
OpenStudy (anonymous):
What is the circumference of circle p? @jim_thompson5910
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OpenStudy (anonymous):
OpenStudy (alexandervonhumboldt2):
formula for circumfence is c=pi*2r or c=d*pi
OpenStudy (alexandervonhumboldt2):
where r is radius and d is diameter
OpenStudy (anonymous):
idk? plz help :(
OpenStudy (alexandervonhumboldt2):
well what do you dont understand?
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OpenStudy (anonymous):
What is the circumference of circle p?
OpenStudy (alexandervonhumboldt2):
so yuor radius is 17.
now substitue it into formula i gave you:
c=17*2*3.14=calculate and get the anser
OpenStudy (anonymous):
ok ty
OpenStudy (anonymous):
106.76?
OpenStudy (alexandervonhumboldt2):
yes
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OpenStudy (anonymous):
cool. so should it be jus 106? or all of it.
OpenStudy (alexandervonhumboldt2):
well as they dont say to round it i think dont round and type 106.76
OpenStudy (anonymous):
oh ok ty
OpenStudy (anonymous):
i got other question
OpenStudy (alexandervonhumboldt2):
ok
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OpenStudy (anonymous):
what is the circumference of circle p? PB= 29m
OpenStudy (alexandervonhumboldt2):
well substitue into formula: c=r*2*pi=29*2*3.14=
OpenStudy (anonymous):
182.12?
OpenStudy (anonymous):
oh wait
OpenStudy (alexandervonhumboldt2):
yeah 182.12
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OpenStudy (anonymous):
u sure?
OpenStudy (anonymous):
182 pi?
OpenStudy (astrophysics):
\[C = 2 \pi r \implies 2 (17) \pi\]
OpenStudy (alexandervonhumboldt2):
no not pi
pi is already calculated. 182.12 is the final anser
OpenStudy (anonymous):
oh ok
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OpenStudy (astrophysics):
Does it want you to leave pi alone or include it in the calculation?
OpenStudy (anonymous):
aiight
OpenStudy (anonymous):
heres other.
OpenStudy (anonymous):
find the length of AC? ab=36
30 degree
OpenStudy (astrophysics):
Give us a diagram.
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OpenStudy (anonymous):
|dw:1428037280271:dw|
OpenStudy (astrophysics):
Know your trig ratios? If we have AB = 36, then half of that must be the radius right?
OpenStudy (anonymous):
yea
OpenStudy (anonymous):
and????? @Astrophysics