reteach 7 4 similar triangles answer key
= 60°, and ∠F = 70°. Are the triangles similar? Explain. Solution: Since all corresponding angles are equal: ∠A ≅ ∠D (50°) ∠B ≅ ∠E (60°) ∠C ≅ ∠F (70°) By the AA criterion, ΔABC ~ ΔDEF. Conclusion: The triangles are similar because they have equal corresponding angles. Example 2: Using SSS t