Similarity of triangles
Plane geometry · Mathematics
Study notes
Q: Similar triangles: sides 3,4,5 and 6,8,10. Scale factor? Area ratio? 6/3 = 2: scale factor k = 2. Check: 8/4 = 2, 10/5 = 2 ✓ SIMILAR (SSS similarity)! Area ratio: k² = 4. (Areas: 6 and 24: 24/6 = 4 ✓!) AA: two matching angles also proves similarity!