Given that L_1 and L_2 are parallel, determine the value of the angle \widehat{a}.
Given that L_1 and L_2 are parallel, determine the value of the angle \widehat{a}.
Given that L_1 and L_2 are parallel, determine the value of the angle \widehat{a}.
Given that L_1 and L_2 are parallel, determine the value of the angle \widehat{a}.
Given that L_1 and L_2 are parallel, determine the value of the angle \widehat{a}.
Given that L_1 and L_2 are parallel, determine the value of the angle \widehat{a}.
Given that L_1 and L_2 are parallel, determine the value of the angle \widehat{a}.