To not let a king rise again
A. Sir Marhaus was killed and Sir Tristram was seriously wounded. In order to free his uncle King Mark of Cornwall, Tristan fought Sir Marhaus in a duel. Tristan was 18 whereas Marhaus was much older at the time of the duel. The faster Tristan won the duel but was wounded by Marhaus who used a poisoned spear during the fight and went to Ireland to be healed.
There is a lot of stuff you need to remember, be more specific.?
A. Absolute value of -18 is 18, because absolute value is always positive. B. the absolute value tells us that -18 is 18 degrees away from zero.