如图,∠A+∠B+∠C+∠D+∠E+∠F为(  ) A.180° B.360° C.540° D.720

如图,∠A+∠B+∠C+∠D+∠E+∠F为(  ) A.180° B.360° C.540° D.720°
2025-05-17 21:37:40
推荐回答(1个)
回答1:



因为∠D+∠E=∠EGC,∠EGC+∠C=∠BIG,
所以∠D+∠E+∠C=∠BIG.
故∠A+∠B+∠C+∠D+∠E+∠F
=(∠A+∠B+∠F)+(∠D+∠E+∠C)
=∠A+∠B+∠F+∠BIG=360°.
故本题选B.