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.
History and names. The English word amber derives from Arabic Ê¿anbar Ø¹ÙØ¨Ø± (cognate with Middle Persian ambar) via Middle Latin ambar and Middle French ambre. The word was adopted in Middle English in the 14th century as referring to what is now known as ambergris (ambre gris or grey amber), a solid waxy substance derived from the sperm whale.