Use your compass and straightedge and on the triangle below,
1. Construct the perpendicular bisectors of the sides
2. Draw the circumscribed circle.
3. Construct the medians.
4. Construct the altitudes.
5. Find the midpoint of the Euler line.
6. Draw the 9 point circle.
7. Bisect the three angles.
8. Drop a perpendicular from the point where the angle bisectors meet to a side to find a point of tangency.
9. Draw the inscribed circle.