Construction of an equilateral triangle inscribed in a circle.
Step 1) Draw the diameter of the circle through center P using a straight edge.
Step 2) Open the compass to the width equivalent to the radius of the circle.
Note: As we open the compass equivalent to the radius of the circle. So, we need to draw a circle now.
Therefore, next step would be.
Step 3) Place the point of the compass on the edge of the circle and mark off arcs all the way around.