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In circle A shown below, mArc BC is 71° and mArc EF is 78°. http://learn.flvs.net/webdav/assessment_images/educator_geometry_v14/pool_Geom_3641_0801_03/image0044e847a03.gif What is m∡FDE?

Mathematics
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|dw:1346794160576:dw| Inner angle equals the aritmetic average of its supporting arcs on both sides
okay...........

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Other answers:

Did you undestand what to compute ?
not really...
|dw:1346794316086:dw|
so is it 78?
Meant FDE of course
Come on - who are the 2 supporting arcs?
what do you mean?
|dw:1346794469021:dw|
(78 +71)/2
so its 74.5?
@Mikael is it 74.5?
Y + mdl pls
Here's a good reference: http://www.mathwarehouse.com/geometry/circle/angles-of-intersecting-chords-theorem.php
@Mikael so it IS 74.5? I really need a final answer
Plese click on Blue (ribbon)
not until u tell me if 74.5 is correct
i need a final answer. I posted this so i could get help, not try to learn something and then hope i get it right....
(78 +71)/2 = 74.5
??? ...!
Tsk tsk tsk, how embarrassing: Begging for medals . . .

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