Select the Ruler tool. (If the Ruler isn’t visible ... To create a protractor from an existing measuring line, Alt-drag at an angle from one end of the measuring line. Hold down the Shift ...

Then simply mark the angle along the ruler edge of the square ... There are better tools for marking circles, but this one's likely to be in your toolbelt already and it does a creditable ...

There are two ways to construct a triangle using a ruler and a protractor. The first is a Side, Angle, Side (SAS) construction where two sides and the angle between them is known. The second is an ...