Mathematics
9 Online
OpenStudy (anonymous):
help
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OpenStudy (anonymous):
Find 1,2,3,4,5,6
OpenStudy (anonymous):
@sleepyhead314
OpenStudy (anonymous):
|dw:1430855834546:dw|
OpenStudy (anonymous):
plz deterime angle 1,2,3,4,5,6
OpenStudy (sleepyhead314):
I'm assuming the degrees are referring to the sector length?
and angles 4/5 are on the center?
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OpenStudy (anonymous):
ok
OpenStudy (anonymous):
they just asked to find 1,2,3,4,5,6
OpenStudy (sleepyhead314):
central angle rule thing
angle 4 = 92
then angle 5 = 180 - angle 4
OpenStudy (anonymous):
yup I got those but rest of them I didnt
OpenStudy (sleepyhead314):
if RA is the diameter I think that makes angle 2 = 90 degrees
(I can't remember the specific names of the rules, sorry)
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OpenStudy (anonymous):
it is ok, I don't need the specific names of rules
OpenStudy (anonymous):
what about angle 1,2,6
OpenStudy (sleepyhead314):
angle 3 should be half of 70 because it is containing that arc but on the other side of the circle (not the center)
OpenStudy (anonymous):
is 6=55
OpenStudy (sleepyhead314):
yes :) good job!
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OpenStudy (anonymous):
what about angle 1
OpenStudy (sleepyhead314):
huh?
OpenStudy (anonymous):
angle 1 and angle 6 should be the same right
OpenStudy (anonymous):
I am not sure about angle 1
OpenStudy (sleepyhead314):
yeah, I can't seem to figure out angle 1 either :(
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OpenStudy (anonymous):
as you said for angle 3, it should be half of 70 because it is containing that arc. I would say the same thing for angle 1, half of 92
OpenStudy (sleepyhead314):
angle 3 worked that way because it was ON the circle encompassing the arc'ed angle
angle 1 seems to be in the middle of nowhere... ...
OpenStudy (anonymous):
i forgot angle 1 is on the circle
OpenStudy (anonymous):
I drew it wrong
OpenStudy (anonymous):
so I can use that method right? sorry.......
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OpenStudy (sleepyhead314):
|dw:1430857496526:dw|