ad ▁bin ▁Sal man ▁League ▁players ▁Category : Sa udi ▁Professional ▁League ▁players <0x0A> </s> ▁A ▁right ▁triangle ▁( American ▁English ) ▁or ▁right - ang led ▁triangle ▁( B rit ish ▁English ) ▁is ▁a ▁triangle ▁in ▁which ▁one ▁angle ▁is ▁a ▁right ▁angle ▁( that ▁is , ▁a ▁ 9 0 - deg ree ▁angle ). ▁ ▁The ▁relation ▁between ▁the ▁sides ▁and ▁angles ▁of ▁a ▁right ▁triangle ▁is ▁the ▁basis ▁for ▁trig on ometry . ▁ ▁The ▁side ▁opposite ▁the ▁right ▁angle ▁is ▁called ▁the ▁hyp oten use ▁( side ▁c ▁in ▁the ▁figure ). ▁The ▁sides ▁adjacent ▁to ▁the ▁right ▁angle ▁are ▁called ▁legs ▁( or ▁c ath eti , ▁singular : ▁c ath et us ). ▁Side ▁a ▁may ▁be ▁identified ▁as ▁the ▁side ▁adjacent ▁to ▁angle ▁B ▁and ▁opposed ▁to ▁( or ▁opposite ) ▁angle ▁A , ▁while ▁side ▁b ▁is ▁the ▁side ▁adjacent ▁to ▁angle ▁A ▁and ▁opposed ▁to ▁angle ▁B . ▁ ▁If ▁the ▁lengths ▁of ▁all ▁three ▁sides ▁of ▁a ▁right ▁triangle ▁are ▁integers , ▁the ▁triangle ▁is ▁said ▁to ▁be ▁a ▁P yth ag ore an ▁triangle ▁and ▁its ▁side ▁lengths ▁are ▁collect ively ▁known ▁as ▁a ▁P yth ag ore an ▁triple . ▁ ▁Princi pal ▁properties ▁ ▁Area ▁As ▁with ▁any ▁triangle , ▁the ▁area ▁is ▁equal ▁to ▁one ▁half ▁the ▁base ▁multip lied ▁by ▁the ▁corresponding ▁height . ▁In ▁a ▁right ▁triangle , ▁if ▁one ▁leg ▁is ▁taken ▁as ▁the ▁base ▁then ▁the ▁other ▁is ▁height , ▁so ▁the ▁area