Question

find .
...... ... plz show by doing it

Answer 1

Here are steps:-

1) Draw a line AB

2) Take point M on AB as centre of circle

3) Draw a circle of any radius as M is centre which intersect AB on N

4) Make an arc as centre N

Draw an angle of 90° and 120°

Hence, 105 = 1/2(90+120)

Refer to attachment respectively:)