Lesson 7: similar triangles
Words to Know
Similar Triangles:
Examples
1. Determine Similar Triangles by Angles
Video
2. Determine Similar Triangles by Sides
Video
3. Find Missing Measures
Video
4. Indirect Measurement
Video
Video
2. Determine Similar Triangles by Sides
Video
3. Find Missing Measures
Video
4. Indirect Measurement
Video
Tips
Similar triangles have corresponding angles that are equal and corresponding sides that are proportional
Extra Examples
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Problems of the Day
1. Triangle ABC has angles 30, 60, and 90, respectively. Triangle DEF has m<F = 90 and m<D = 30. Are triangles ABC and DEF similar? Why?
2. Triangle XYZ has sides 14, 21, 36 inches. Triangle ABC has sides 2, 3 and 13 inches. Are triangles XYZ and ABC similar? Why?
2. Triangle XYZ has sides 14, 21, 36 inches. Triangle ABC has sides 2, 3 and 13 inches. Are triangles XYZ and ABC similar? Why?