Practice · Triangles: Congruence & Similarity — L4 The proportionality theorem and the altitude theorem

Question 1 of 10 · 0 correct so far
Difficulty: Medium
Short answer

In triangle ABC, D is on AB, E is on AC, and DE is parallel to BC. AD = 5, DB = 5, AE = 7. Find EC.

Fractions like 1 1/2, 9/6 and 3/2 are all accepted where they're equal.

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