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Geometry 18 Online
OpenStudy (anonymous):

HELP.Kite DCFE is inscribed in circle A shown below. https://vvsd6966-vvagpeap-ccl.gradpoint.com/Resource/6114359,67D,0,0,0,0,0/Assets/74858_53c6cf40/0801_g5_q1to3_a.gif If the measure of arcDEF is 232°, what is the measure of ∠ DEF?

OpenStudy (anonymous):

@jim_thompson5910 Last one, I think. :P

OpenStudy (anonymous):

@Kainui

OpenStudy (anonymous):

Would it still be 232?

OpenStudy (kainui):

I'm not really familiar with the terminology, sorry. Is there a difference between arc DEF and angle DEF?

OpenStudy (anonymous):

No idea.I gave you the picture the question asks in case.Do you know someone who can help?

OpenStudy (anonymous):

@jazy

OpenStudy (anonymous):

@Jesstho.-.

OpenStudy (anonymous):

@jim_thompson5910

OpenStudy (anonymous):

Not sure.

OpenStudy (anonymous):

awww

OpenStudy (anonymous):

@princeharryyy

OpenStudy (anonymous):

@Nnesha

jimthompson5910 (jim_thompson5910):

what is the measure of arc DCF

OpenStudy (princeharryyy):

what do u think @Tatsurion

OpenStudy (anonymous):

I thought it was 232

jimthompson5910 (jim_thompson5910):

that's arc DEF

OpenStudy (princeharryyy):

sory but that is wrong

OpenStudy (anonymous):

I don't know what to do.

OpenStudy (anonymous):

What do I do?

jimthompson5910 (jim_thompson5910):

arc DEF is 232 degrees arc DCF is unknown, call it x

jimthompson5910 (jim_thompson5910):

the two arcs add to 360 degrees to form the full circle

jimthompson5910 (jim_thompson5910):

232+x = 360 ---> x = ??

OpenStudy (anonymous):

128

OpenStudy (anonymous):

What next?

jimthompson5910 (jim_thompson5910):

you'll then use the inscribed angle theorem to find angle DEF

OpenStudy (anonymous):

232-128?

jimthompson5910 (jim_thompson5910):

|dw:1421901908354:dw|

jimthompson5910 (jim_thompson5910):

|dw:1421901951618:dw|

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