Name _______________________________________ Date __________________ Class __________________
LESSON
11-4
AA Similarity of Triangles
Practice and Problem Solving: C
Use principles of triangle similarity to solve Problems 1–4.
1. Find ST. Explain your reasoning.
2. Triangle ABC is a right triangle. BD is perpendicular to
AC. Show that ABC
ADB
BDC.
3. Use triangle similarity to prove that GHIJK ~ PQRST.
4.To measure the distance EF across the lake, a surveyor
at S locates points E, F, G, and H as shown. Find EF.
Explain your answer.
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