(1) In triangle JKL, we have JK = JL = 25 and KL = 30. Find the area.
(2) In triangle ABC, we have AB = 5, AC = 12, BC = 13. Find the circumradius.
(1) we have the altitude = 20 so 20*30*1/2 = 300
(2) 13/2 = 6.5
+874 
