如图1所示OC=60.500 m , β=(∠AOC0)-β1(∠AOC)=+3”,则CC0的值为
举一反三
- 如图1所示OC=60.500 m , β=(∠AOC0)-β1(∠AOC)=+3”,则CC0的值为( ) A: +0.009m B: - 0.009m C: 0.0045 m D: + 0.0045 m
- 如下图所示,OC=60.500m,β(∠AOC0)-β1(∠AOC)=+30″,则CC0的值为() A: +0.009m B: –0.009m C: –0.0045m D: +0.0045m
- 如右下图所示,OC=60.500m,β(∠AOC0)-β1(∠AOC)=+30″,则CC0的值为() A: +0.009m B: –0.009m C: –0.0045m D: +0.0045m
- 如右下图所示,OC=60.500m,β(∠AOC0)-β1(∠AOC)=+30″,则CC0的值为()。[img=377x227]17e438bc41860b5.png[/img] A: +0.009m B: –0.009m C: –0.0045m D: +0.0045m
- 已知:OB是∠AOC的平分线. OC是∠BOD的平分线.求证:∠1=∠3.证明:∵OB是∠AOC的平分线(已知)∴∠1=∠2() ∵OC是∠BOD的平分线(已知)∴∠2=∠3() ∴∠1=∠3