To find the hypotenuse of a right-angled triangle, use the Pythagorean theorem. Square the base and the height. Add the two squares, and calculate the square root of the sum of the two squares. You need to know the base and the height of the triangle to complete this task.
Where did aluminum get its name? Aluminum got its name from Sir Humphry Davy, he named it after the Latin word Alumen meaning bitter taste . That is why the element Aluminum is symbolized as Al in when look â¦ ing at the periodic table of elements.
Chemically, this is potassium aluminium sulphate (a name which gives me two further opportunities to parade my British spellings of chemical names). Sir Humphry made a bit of a mess of naming this new element, at first spelling it alumium (this was in 1807) then changing it to aluminum, and finally settling on aluminium in 1812.