(1)解:如图所示;(2)证明:∵AB=AC,∠A=36°,∴∠ABC= 1 2 ×(180°-∠A)=72°,∵DE垂直平分AB,∴EA=EB,∴∠ABE=∠A=36°= 1 2 ∠ABC,即BE平分∠ABC.