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OpenStudy (anonymous):

♥♥Help me♥♥ If arc CE= 40°, and m∠CDE = 30°, what is arc AB ? 70° 100° 140° 20°

OpenStudy (anonymous):

sam (.sam.):

|dw:1370626747906:dw|

sam (.sam.):

x is 100 do you know why?

OpenStudy (anonymous):

No

OpenStudy (anonymous):

I would say It has to equal 180 degrees but 40 and 30 only add up to 170

sam (.sam.):

|dw:1370626953010:dw|

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