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OpenStudy (y1066380):
OpenStudy (y1066380):
thanks
OpenStudy (anonymous):
your welcome hold on a sec its D 66
OpenStudy (y1066380):
What's the steps?
OpenStudy (y1066380):
I would like to know.
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OpenStudy (anonymous):
the steps are first take your finger and go to the nearest pair step two label step three solve
OpenStudy (y1066380):
Um.. the correct answer is E...
OpenStudy (anonymous):
oops I was wrong I mean to the nearest number and do circumference and multiply the diameter and solve so its E
OpenStudy (dumbcow):
lol circumference and diameter ???
OpenStudy (anonymous):
yes
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OpenStudy (imstuck):
Can't wait to see this one...I can't figure it out to save my life!
OpenStudy (y1066380):
Oh I know it now
OpenStudy (anonymous):
ok
OpenStudy (y1066380):
converse of angle DOB = 114 * 2 = 228
i.e. angle DOB = 360-228 = 132
angle CBE = 180-114-20 = 46 (angle sum of triangle)
so, x = 360-114-46-132 = 68 (angle sum of polygon)
OpenStudy (y1066380):
am I right?
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OpenStudy (dumbcow):
@y1066380
first find angle B
|dw:1406479382449:dw|
then use that to find arc BC
Arc AC = 2*B --> ArcBC = 180 - Arc AC
then from secant-secant theorem
angle 20 is half the difference of opposite arcs
\[20 = \frac{1}{2}(BC - AD)\]
solve for arc AD using arc BC
Finally you can solve for "x" using fact that a quadrilateral has 360 degrees
|dw:1406479763978:dw|
OpenStudy (anonymous):
yes you are correct @y1066380
OpenStudy (y1066380):
thanks
OpenStudy (anonymous):
your welcome and don't forget to close the question:)