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OpenStudy (anonymous):
How do you find the value of a Major arch in a circle?
* will post picture*
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OpenStudy (anonymous):
OpenStudy (anonymous):
I know a major arch is supposed measure more than 90 degrees. So would I add the right angle (90) with 45 degrees to get my answer of 135?
OpenStudy (tanya123):
@ikram002p
OpenStudy (ikram002p):
m of EFC ?
OpenStudy (anonymous):
yes please, how do I find it?
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OpenStudy (ikram002p):
ok so its
arc = r theta
such that r is raduis and theta is the angle btw couls u find it ?
OpenStudy (anonymous):
would the radius be 90 degrees?
OpenStudy (ikram002p):
|dw:1405289505467:dw|
OpenStudy (ikram002p):
well its not neccessary to find rad , only angle is matter
OpenStudy (ikram002p):
find this angle mesure
|dw:1405289620410:dw|
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OpenStudy (ikram002p):
as you can see its 360-(45+90)
right ?
and its the same to arc
OpenStudy (anonymous):
360-135=225
so the arc is 225?
OpenStudy (ikram002p):
yes ur correct :)
OpenStudy (anonymous):
thank you very much :)
OpenStudy (ikram002p):
np :)
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OpenStudy (ikram002p):
ok nw ill give u a Qn , so that i would be sure that u got it ok ?
OpenStudy (anonymous):
ok
OpenStudy (ikram002p):
find arc of ABC
|dw:1405289922739:dw|
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