carlosmartinez51
carlosmartinez51
26-05-2018
Mathematics
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Somebody helppppp pleassse
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sqdancefan
sqdancefan
26-05-2018
The total measure of all arcs of a circle is 360°. Short arc DE is 90°, so long arc DFE is 360°-90° = 270°.
mEFD = 270°
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