如图(1)∠AOB = ∠AOC + ( )+( ); (2) ∠AOB = ∠AOC +( ); (3) ∠COD = ∠AOD -(
题型:山东省同步题难度:来源:
如图(1)∠AOB = ∠AOC + ( )+( ); (2) ∠AOB = ∠AOC +( ); (3) ∠COD = ∠AOD -( ) = ∠BOC - ( ); (4)∠BOC = ( )- ∠AOC |
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答案
(1) ∠COD, ∠BOD ; (2) ∠BOC ; (3) ∠AOC, ∠BOD ; (4) ∠AOB |
举一反三
看图填空: (1)∠AOB = ∠AOC +( )+( ); (2) ∠AOB = ∠AOC + ( ); (3) ∠COD = ∠BOC -( ) (4) 图中共有( )个角。 |
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如图,完成下列填空: (1)∠BOD = ∠BOC + ( ); (2) ∠AOC = ( )+( ); (3) ∠AOB = ( )+( )+( ); (4) ∠AOD+∠BOC = ( ) -( ) |
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如图:已知∠AOB=∠BOC=∠COD,则∠AOD=( )∠BOC;∠AOC=( )∠BOD;∠AOC=( )∠AOD。 |
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如果∠AOC=∠BOD,则图中还有相等的角吗,为什么? |
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