Given: AB=AC, DE ǁ BC
Prove: AD=AE
Click or touch to draw on the diagram
AB=AC, DE ǁ BC
AD = AE
(AD)(AB) = (AB)(AE)
AD/AB = AE/AC
Given
(AD)(AC) = (AB)( AE)
Algebra
Substitution
Side-Splitter theorem
Algebra