Practical Geome...

The first step in the process is:

Which of the following lines from point $$P$$ is a perpendicular to line $$AB$$?

Each angle of equilateral triangle is $$ 60^\circ$$. The angles are bisected then each angle will be of:

A square is given and an angle of $$30^{o}$$ is drawn from one of its vertex . The figure will look like what?

The fourth step in the process is:

The steps of construction of an $$\angle AOB=45^{o}$$ is given in jumbled order below:
1. Place compass on intersection point.
2. Place ruler on start point and where arc intersects perpendicular line.
3. Adjust compass width to reach start point. 
4. Construct a perpendicular line.
5. Draw $$45$$ degree line.
6. Draw an arc that intersects perpendicular line. 
Which step comes first?

An architect needs a staircase attached to a wall.The angle between stair and ground needs to be 30.
His plan will look like:

The steps for constructing an $$\angle ABC$$ of measure $$120^\circ$$ are given below in jumbled order:
1. From the point $$R$$, mark a point $$P$$ on the same arc with the same radius.
2. Place the pointed end of the compass on $$B$$ and draw a semi-circular arc with arbitrary radius and name its intersection with ray $$BC$$ as $$Q$$.
3. Draw a ray $$BC$$.
4. From point $$Q$$, mark a point $$R$$ on the arc with the same radius.
5. Join $$B-P$$ and extend it to obtain ray $$BA$$

The second step in the process is:

Which of the following angles cannot be constructed using a protractor?