Instrucciones: Responde las siguientes preguntas.

• Calcula el valor del arco $\stackrel{⌢}{\mathrm{DA}}$ si $\measuredangle APD={12}^{\circ }$ y $\stackrel{⌢}{\mathrm{BC}}={11}^{\circ }$.

  
  • ${37}^{\circ }$
  • ${35}^{\circ }$
  • ${33}^{\circ }$
  • ${40}^{\circ }$

• Calcula el valor del arco $\stackrel{⌢}{\mathrm{DA}}$ si $\measuredangle APD={21}^{\circ }$ y $\stackrel{⌢}{\mathrm{BC}}={37}^{\circ }$.

  
  • ${78}^{\circ }$
  • ${74}^{\circ }$
  • ${79}^{\circ }$
  • ${88}^{\circ }$

• Calcula la magnitud del ángulo $\measuredangle APD$ si $\stackrel{⌢}{\mathrm{DA}}={111}^{\circ }$ y $\stackrel{⌢}{\mathrm{BC}}={63}^{\circ }$.

  
  • ${24}^{\circ }$
  • ${22}^{\circ }$
  • ${19}^{\circ }$
  • ${16}^{\circ }$

• Calcula el valor del arco $\stackrel{⌢}{\mathrm{CB}}$ si $\measuredangle DPA={30}^{\circ }$ y $\stackrel{⌢}{\mathrm{AD}}={100}^{\circ }$.

  
  • ${33}^{\circ }$
  • ${44}^{\circ }$
  • ${40}^{\circ }$
  • ${37}^{\circ }$

• Calcula la magnitud del ángulo $\measuredangle APD$ si $\stackrel{⌢}{\mathrm{DA}}={60}^{\circ }$ y $\stackrel{⌢}{\mathrm{BC}}={30}^{\circ }$.

  
  • ${15}^{\circ }$
  • ${18}^{\circ }$
  • ${14}^{\circ }$
  • ${10}^{\circ }$