The side lengths of a right triangle form a so-called Pythagorean triple. A triangle that is not a right triangle is sometimes called an oblique triangle. Special cases of the right triangle include the isosceles right triangle (middle figure) and 30-60-90 triangle (right figure).
The first pacemaker was implanted on 8th October 1958 in a 43 year old man called Arne Larsson with complete heart block and Stokes-Adams attacks. Technological innovations between 1973 and 1980 rendered obsolete the reliable pacemaker of 1970.
You'll usually be able to do all the things you want to do after around four weeks. The time you need off work will depend on your job â your cardiologist will usually be able to advise you about this. Typically, people who've had a pacemaker fitted are advised to take three to seven days off.