共50条信息
如图,\(⊙O\)的内接四边形\(ABCD\)中,\(∠A=105^{\circ}\),则\(∠BOD\)等于 .
如图,四边形 \(ABCD\)内接于\(⊙\)\(O\),四边形 \(ABCO\)是平行四边形,则\(∠\)\(ADC\)\(=(\) \()\)
如图,\(⊙O\)的半径为\(3\),四边形\(ABCD\)内接于\(⊙O\),若\(2∠BAD=∠BCD\),则\(\overline {BD} \)的长为\((\) \()\)
如图,\(A\),\(B\),\(C\),\(D\)为\(⊙\)\(O\)上四点,若\(∠\)\(BOD\)\(=110º\),则\(∠\)\(A\)的度数是( )
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