ABC is a triangle. D and E are points on AB and AC respectively. DE is parallel to BC. Prove that: I. ∆ ~ ∆ II. Given AD = ½ BD, calculate DE if BC = 4.5cm . III. Area of ∆ADE/Area of ∆ABC About the author Amaya
Answer:
∆ABC is a triangle .D and E are point. on AB and AC