You can insert a Geodreieck protractor (also known as a set square or T-square) on a page and then manipulate its size, rotation and location.
To insert a Geodreieck protractor
To move the protractor
Press the inner part of the protractor (within the semi-circle) and then drag the protractor to a different position on the page.
To resize the protractor
Press the semi-circle and then drag away from the centre of the protractor to make it bigger or towards the centre of the protractor to make it smaller.
To rotate the protractor
Press the outer part of the protractor (outside of the semi-circle) and then drag the protractor in the direction you want to rotate it.
The protractor displays the current rotation in degrees.