question_answer 1)

Construct \[\Delta ABC,\] given \[m\angle A={{60}^{\text{o}}},m\angle B={{30}^{\text{o}}}\]and \[\text{AB = 5}\text{.8 cm}\].

Answer:

                Steps of construction 1. Draw AB of length 5.8 cm.                                   2. At A, draw a ray AP making an angle of \[\text{6}{{0}^{\text{o}}}\] with AB.  3. At B, draw a ray BQ making an angle of \[\text{3}{{0}^{\text{o}}}\] with BA.   4. Mark the point of intersection of two rays as C. \[\Delta \Alpha \Beta C\] is now completed.