" 1.Construct an angle of "90^(@)" at the initial point of a given ray and justify the construction."

Construct an angle of 90^(@) at the initial point of a given ray and justify the construction. Draw its angle bisector.

Construct an angle of 45^@ at the initial point of a given ray and justify the construction.

Construct an angle of 45^@ at the initial point of a given ray and justify the construction.

Construct an angle of 45^@ at the initial point of a given ray and justify the construction.

Construct an angle of 60^@ at the initial point of a given ray.

Construct an angle of 60^@ at the initial point of a given ray.

To construct an angle of 60^(@) at the initial point of a given ray.

Construct the following angles at the initial point of a given ray and justify the construction. 90^@

Construct the following angles at the initial point of a given ray and justify the construction. 45^@