Similar Triangles — Formula Sheet
Telangana Board · Class 10 · Mathematics
6 formulas from Similar Triangles (Telangana Board Class 10 Mathematics) on one page, grouped by topic. Includes Example 9.
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Formulas and Key Relations
2. Similarity Conditions for Triangles
AB/DE = BC/EF = AC/DF
3. Basic Proportionality Theorem and Converse
AD/DB = AE/EC
4. Standard Examples Based on BPT
AD/DB = 3/5, AC = 5.6 cm => AE = 2.1 cm
LM || AB => AL/LC = BM/MC
If AO/BO = CO/DO, then ABCD is a trapezium
Areas of Similar Triangles
Example 9
if areas are 64 cm^2 and 121 cm^2 and EF = 15.4 cm, then BC = 11.2 cm.
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