如图,C、E和B、D、F分别在∠GAH的两边上,且AB =" BC" =" CD" =" DE" = EF,若∠A =18°,则∠GEF的度数是( )
A.108° B.100° C.90° D.80°
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如图,C、E和B、D、F分别在∠GAH的两边上,且AB =" BC" =" CD" =" DE" = EF,若∠A =18°,则∠GEF的度数是( )
A.108° B.100° C.90° D.80°
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