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Geometry 8 Online
OpenStudy (anonymous):

How do you find the value of a Major arch in a circle? * will post picture*

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?

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|

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 :)

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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