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Mathematics 9 Online
OpenStudy (anonymous):

help

OpenStudy (anonymous):

Find 1,2,3,4,5,6

OpenStudy (anonymous):

@sleepyhead314

OpenStudy (anonymous):

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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?

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)

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!

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 :(

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.......

OpenStudy (sleepyhead314):

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